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<H1 id="firstHeading" class="firstHeading" lang="en">Windows Defender</H1>			<DIV id="bodyContent" class="mw-body-content">
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				<DIV id="mw-content-text" lang="en" dir="ltr" class="mw-content-ltr"><DIV class="mw-parser-output"><DIV role="note" class="hatnote navigation-not-searchable">Not to be confused with <A href="/wiki/Windows_Defender_Security_Center" class="mw-redirect" title="Windows Defender Security Center">Windows Defender Security Center</A>.</DIV>
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<CAPTION class="summary">Windows Defender</CAPTION>
<TBODY><TR>
<TH colspan="2" style="text-align:center;font-size:125%;font-weight:bold;font-size: 100%">A component of <A href="/wiki/Microsoft_Windows" title="Microsoft Windows">Microsoft Windows</A></TH>
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<TR>
<TD colspan="2" style="text-align:center"><A href="/wiki/File:Windows_Defender_logo.svg" class="image"><IMG alt="Windows Defender logo.svg" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/50/Windows_Defender_logo.svg/61px-Windows_Defender_logo.svg.png" width="61" height="64" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/50/Windows_Defender_logo.svg/91px-Windows_Defender_logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/50/Windows_Defender_logo.svg/122px-Windows_Defender_logo.svg.png 2x" data-file-width="100" data-file-height="105" /></A></TD>
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<TD colspan="2" style="text-align:center"><A href="/wiki/File:Windows_Defender.png" class="image"><IMG alt="Windows Defender.png" src="//upload.wikimedia.org/wikipedia/en/thumb/c/cf/Windows_Defender.png/300px-Windows_Defender.png" width="300" height="212" srcset="//upload.wikimedia.org/wikipedia/en/c/cf/Windows_Defender.png 1.5x" data-file-width="375" data-file-height="265" /></A>
<DIV>Windows Defender Antivirus, as appears in the Windows 10 Creators Update</DIV>
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<TH colspan="2" style="text-align:center;background-color: #e8ece4">Details</TH>
</TR>
<TR>
<TH scope="row" style="white-space: nowrap">Type</TH>
<TD><A href="/wiki/Antivirus_software" title="Antivirus software">Antivirus software</A> on <A href="/wiki/Windows_8" title="Windows 8">Windows 8</A> and later; formerly <A href="/wiki/Spyware_removal_software" class="mw-redirect" title="Spyware removal software">spyware removal software</A></TD>
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<TR>
<TH scope="row" style="white-space: nowrap">Included with</TH>
<TD><A href="/wiki/Windows_Vista" title="Windows Vista">Windows Vista</A> and later, <A href="/wiki/Windows_Server_2016" title="Windows Server 2016">Windows Server 2016</A></TD>
</TR>
<TR>
<TH scope="row" style="white-space: nowrap">Also available for</TH>
<TD><A href="/wiki/Windows_XP" title="Windows XP">Windows XP</A> and <A href="/wiki/Windows_Server_2003" title="Windows Server 2003">Windows Server 2003</A><SUP id="cite_ref-1" class="reference"><A href="#cite_note-1">[1]</A></SUP></TD>
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<TH colspan="2" style="text-align:center;background-color: #e8ece4">Support status</TH>
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<TD colspan="2" style="text-align:center">Same as the version of Windows with which it is integrated</TD>
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<TH colspan="2" style="text-align:center;background-color: #e8ece4">Related components</TH>
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<TD colspan="2" style="text-align:center">
<DIV class="plainlist">
<UL>
<LI><A href="/wiki/Microsoft_Security_Essentials" title="Microsoft Security Essentials">Microsoft Security Essentials</A></LI>
<LI><A href="/wiki/Windows_Defender_Security_Center" class="mw-redirect" title="Windows Defender Security Center">Windows Defender Security Center</A></LI>
</UL>
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<P><B>Windows Defender</B>, officially called <B>Windows Defender Antivirus</B> in <A href="/wiki/Windows_10_Creators_Update" class="mw-redirect" title="Windows 10 Creators Update">Windows 10 Creators Update</A>, is an <A href="/wiki/Antivirus_software" title="Antivirus software">anti-malware</A> component of <A href="/wiki/Microsoft_Windows" title="Microsoft Windows">Microsoft Windows</A>.<SUP id="cite_ref-Windows_Defender_Overview_2-0" class="reference"><A href="#cite_note-Windows_Defender_Overview-2">[2]</A></SUP>It was first released as a free <A href="/wiki/Spyware" title="Spyware">antispyware</A> program download for <A href="/wiki/Windows_XP" title="Windows XP">Windows XP</A>, shipped with <A href="/wiki/Windows_Vista" title="Windows Vista">Windows Vista</A> and <A href="/wiki/Windows_7" title="Windows 7">Windows 7</A> and made into a full antivirus program replacing <A href="/wiki/Microsoft_Security_Essentials" title="Microsoft Security Essentials">Microsoft Security Essentials</A> as part of <A href="/wiki/Windows_8" title="Windows 8">Windows 8</A> and later versions.<SUP id="cite_ref-Windows_Defender_Overview_2-1" class="reference"><A href="#cite_note-Windows_Defender_Overview-2">[2]</A></SUP></P>
<P></P>
<DIV id="toc" class="toc">
<DIV class="toctitle" lang="en" dir="ltr" xml:lang="en">
<H2>Contents</H2>
<SPAN class="toctoggle"> [<A role="button" tabindex="0" class="togglelink">hide</A>] </SPAN></DIV>
<UL>
<LI class="toclevel-1 tocsection-1"><A href="#Basic_features"><SPAN class="tocnumber">1</SPAN> <SPAN class="toctext">Basic features</SPAN></A></LI>
<LI class="toclevel-1 tocsection-2"><A href="#History"><SPAN class="tocnumber">2</SPAN> <SPAN class="toctext">History</SPAN></A>
<UL>
<LI class="toclevel-2 tocsection-3"><A href="#Beta"><SPAN class="tocnumber">2.1</SPAN> <SPAN class="toctext">Beta</SPAN></A></LI>
<LI class="toclevel-2 tocsection-4"><A href="#General_availability"><SPAN class="tocnumber">2.2</SPAN> <SPAN class="toctext">General availability</SPAN></A></LI>
<LI class="toclevel-2 tocsection-5"><A href="#Conversion_to_antivirus"><SPAN class="tocnumber">2.3</SPAN> <SPAN class="toctext">Conversion to antivirus</SPAN></A></LI>
</UL>
</LI>
<LI class="toclevel-1 tocsection-6"><A href="#Advanced_features"><SPAN class="tocnumber">3</SPAN> <SPAN class="toctext">Advanced features</SPAN></A></LI>
<LI class="toclevel-1 tocsection-7"><A href="#Windows_Vista-specific_functionality"><SPAN class="tocnumber">4</SPAN> <SPAN class="toctext">Windows Vista-specific functionality</SPAN></A></LI>
<LI class="toclevel-1 tocsection-8"><A href="#Windows_Defender_Offline"><SPAN class="tocnumber">5</SPAN> <SPAN class="toctext">Windows Defender Offline</SPAN></A></LI>
<LI class="toclevel-1 tocsection-9"><A href="#Mitigated_security_vulnerability"><SPAN class="tocnumber">6</SPAN> <SPAN class="toctext">Mitigated security vulnerability</SPAN></A></LI>
<LI class="toclevel-1 tocsection-10"><A href="#See_also"><SPAN class="tocnumber">7</SPAN> <SPAN class="toctext">See also</SPAN></A></LI>
<LI class="toclevel-1 tocsection-11"><A href="#References"><SPAN class="tocnumber">8</SPAN> <SPAN class="toctext">References</SPAN></A></LI>
<LI class="toclevel-1 tocsection-12"><A href="#External_links"><SPAN class="tocnumber">9</SPAN> <SPAN class="toctext">External links</SPAN></A></LI>
</UL>
</DIV>
<P></P>
<H2><SPAN class="mw-headline" id="Basic_features">Basic features</SPAN><SPAN class="mw-editsection"><SPAN class="mw-editsection-bracket">[</SPAN><A href="/w/index.php?title=Windows_Defender&action=edit&section=1" title="Edit section: Basic features">edit</A><SPAN class="mw-editsection-bracket">]</SPAN></SPAN></H2>
<P>Before Windows 8, Windows Defender protected against spyware.<SUP id="cite_ref-3" class="reference"><A href="#cite_note-3">[3]</A></SUP> It included a number of real-time security agents that monitored several common areas of Windows for changes which might have been caused by spyware. It also included the ability to easily remove installed <A href="/wiki/ActiveX" title="ActiveX">ActiveX</A> software.<SUP id="cite_ref-4" class="reference"><A href="#cite_note-4">[4]</A></SUP>Windows Defender featured integrated support for <A href="/wiki/Microsoft_SpyNet" class="mw-redirect" title="Microsoft SpyNet">Microsoft SpyNet</A> that allows users to report to Microsoft what they consider to be spyware, and what applications and device drivers they allow to be installed on their system. Protection against viruses was added in Windows 8; Windows Defender in Windows 8 resembles Microsoft Security Essentials (MSE) and uses the same <A href="/wiki/Virus_definition" class="mw-redirect" title="Virus definition">virus definitions</A>.</P>
<P>In Windows 10, Windows Defender settings are controlled by the <A href="/wiki/Settings_(Windows)" title="Settings (Windows)">Settings</A> app, and the Settings button opens the Settings app. In the Windows 10 Anniversary Update, toast notifications appear to announce the results of a scan, even if no viruses are found. The same update introduced a new flat logo.<SUP id="cite_ref-5" class="reference"><A href="#cite_note-5">[5]</A></SUP></P>
<H2><SPAN class="mw-headline" id="History">History</SPAN><SPAN class="mw-editsection"><SPAN class="mw-editsection-bracket">[</SPAN><A href="/w/index.php?title=Windows_Defender&action=edit&section=2" title="Edit section: History">edit</A><SPAN class="mw-editsection-bracket">]</SPAN></SPAN></H2>
<H3><SPAN class="mw-headline" id="Beta">Beta</SPAN><SPAN class="mw-editsection"><SPAN class="mw-editsection-bracket">[</SPAN><A href="/w/index.php?title=Windows_Defender&action=edit&section=3" title="Edit section: Beta">edit</A><SPAN class="mw-editsection-bracket">]</SPAN></SPAN></H3>
<DIV class="thumb tleft">
<DIV class="thumbinner" style="width:222px;"><A href="/wiki/File:Windows_AntiSpyware_Beta_1.png" class="image"><IMG alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/2/26/Windows_AntiSpyware_Beta_1.png/220px-Windows_AntiSpyware_Beta_1.png" width="220" height="161" class="thumbimage" srcset="//upload.wikimedia.org/wikipedia/en/2/26/Windows_AntiSpyware_Beta_1.png 1.5x" data-file-width="300" data-file-height="219" /></A>
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<DIV class="magnify"><A href="/wiki/File:Windows_AntiSpyware_Beta_1.png" class="internal" title="Enlarge"></A></DIV>
Microsoft AntiSpyware Beta 1 (Version 1.0.701)</DIV>
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</DIV>
<P>Windows Defender is based on <A href="/wiki/GIANT_AntiSpyware" class="mw-redirect" title="GIANT AntiSpyware">GIANT AntiSpyware</A>, which was originally developed by <A href="/wiki/GIANT_Company_Software,_Inc" class="mw-redirect" title="GIANT Company Software, Inc">GIANT Company Software, Inc</A>. The company's acquisition was announced by Microsoft on December 16, 2004.<SUP id="cite_ref-Winsupersite_6-0" class="reference"><A href="#cite_note-Winsupersite-6">[6]</A></SUP><SUP id="cite_ref-7" class="reference"><A href="#cite_note-7">[7]</A></SUP> While the original GIANT AntiSpyware supported older Windows versions, support for the <A href="/wiki/Windows_9x" title="Windows 9x">Windows 9x</A> line of operating systems was later dropped.</P>
<P>The first <A href="/wiki/Development_stage#Beta" class="mw-redirect" title="Development stage">beta</A> version of Microsoft AntiSpyware was released on January 6, 2005 and was basically a repackaged GIANT AntiSpyware.<SUP id="cite_ref-Winsupersite_6-1" class="reference"><A href="#cite_note-Winsupersite-6">[6]</A></SUP> More builds were released in 2005, with the last Beta 1 refresh released on November 21, 2005.</P>
<P>At the 2005 <A href="/wiki/RSA_Security" title="RSA Security">RSA Security</A> conference, Chief Software Architect and co-founder of Microsoft, <A href="/wiki/Bill_Gates" title="Bill Gates">Bill Gates</A>, announced that Windows Defender (which was known as Microsoft AntiSpyware prior to November 4, 2005) would be made available free of charge to all validly licensed <A href="/wiki/Windows_2000" title="Windows 2000">Windows 2000</A>, <A href="/wiki/Windows_XP" title="Windows XP">Windows XP</A>, and <A href="/wiki/Windows_Server_2003" title="Windows Server 2003">Windows Server 2003</A> users to help secure their systems against the increasing malware threat.<SUP id="cite_ref-8" class="reference"><A href="#cite_note-8">[8]</A></SUP></P>
<P>Windows Defender (Beta 2) was released on February 13, 2006. It featured the program's new name and a significant user interface redesign. The core engine was rewritten in <A href="/wiki/C%2B%2B" title="C++">C++</A>, unlike the original GIANT-developed one, which was written in <A href="/wiki/Visual_Basic" title="Visual Basic">Visual Basic</A>.<SUP id="cite_ref-9" class="reference"><A href="#cite_note-9">[9]</A></SUP> This improved the application's performance. Also, since beta 2, the program works as a Windows service, unlike earlier releases, which enables the application to protect the computer even when a user is not logged on. Beta 2 also requires <A href="/wiki/Windows_Genuine_Advantage" title="Windows Genuine Advantage">Windows Genuine Advantage</A> validation. However, Windows Defender (Beta 2) did not contain some of the tools found in Microsoft AntiSpyware (Beta 1); Microsoft removed the <I>System Inoculation</I>, <I>Secure Shredder</I> and <I>System Explorer</I> tools found in MSAS (Beta 1) as well as the <I>Tracks Eraser</I> tool, which allowed users to easily delete many different types of temporary files related to <A href="/wiki/Internet_Explorer_6" title="Internet Explorer 6">Internet Explorer 6</A>, including <A href="/wiki/HTTP_cookies" class="mw-redirect" title="HTTP cookies">HTTP cookies</A>, <A href="/wiki/Web_cache" title="Web cache">web cache</A>, and <A href="/wiki/Windows_Media_Player" title="Windows Media Player">Windows Media Player</A> playback history.<SUP id="cite_ref-Winsupersite_6-2" class="reference"><A href="#cite_note-Winsupersite-6">[6]</A></SUP> Microsoft later released German and Japanese versions of Windows Defender (Beta 2).<SUP id="cite_ref-10" class="reference"><A href="#cite_note-10">[10]</A></SUP><SUP id="cite_ref-11" class="reference"><A href="#cite_note-11">[11]</A></SUP></P>
<H3><SPAN class="mw-headline" id="General_availability">General availability</SPAN><SPAN class="mw-editsection"><SPAN class="mw-editsection-bracket">[</SPAN><A href="/w/index.php?title=Windows_Defender&action=edit&section=4" title="Edit section: General availability">edit</A><SPAN class="mw-editsection-bracket">]</SPAN></SPAN></H3>
<P>On October 24, 2006, Microsoft <A href="/wiki/General_availability" class="mw-redirect" title="General availability">released</A> Windows Defender. It supports Windows XP and Windows Server 2003; however, unlike the betas, it does not run on Windows 2000.<SUP id="cite_ref-initial_release_12-0" class="reference"><A href="#cite_note-initial_release-12">[12]</A></SUP></P>
<H3><SPAN class="mw-headline" id="Conversion_to_antivirus">Conversion to antivirus</SPAN><SPAN class="mw-editsection"><SPAN class="mw-editsection-bracket">[</SPAN><A href="/w/index.php?title=Windows_Defender&action=edit&section=5" title="Edit section: Conversion to antivirus">edit</A><SPAN class="mw-editsection-bracket">]</SPAN></SPAN></H3>
<P>Windows Defender was released with Windows Vista and Windows 7, serving as their built-in <A href="/wiki/Spyware_removal_software" class="mw-redirect" title="Spyware removal software">antispyware component</A>. In Windows Vista and Windows 7, Windows Defender was superseded by Microsoft Security Essentials, an antivirus product from Microsoft which provided protection against a wider range of malware. Upon installation, Microsoft Security Essentials disabled and replaced Windows Defender.<SUP id="cite_ref-SuperSite_13-0" class="reference"><A href="#cite_note-SuperSite-13">[13]</A></SUP><SUP id="cite_ref-14" class="reference"><A href="#cite_note-14">[14]</A></SUP><SUP id="cite_ref-15" class="reference"><A href="#cite_note-15">[15]</A></SUP> In Windows 8, Microsoft upgraded Windows Defender into an antivirus program very similar to Microsoft Security Essentials for Windows 7<SUP id="cite_ref-16" class="reference"><A href="#cite_note-16">[16]</A></SUP> and using the same virus definition updates. MSE itself does not run on Windows versions beyond 7. In Windows 8 and Windows 10, Windows Defender is on by default. It switches itself off upon installation of a third party anti-virus package.<SUP id="cite_ref-17" class="reference"><A href="#cite_note-17">[17]</A></SUP></P>
<P>Starting with Windows 10, Microsoft began to transfer the control of Windows Defender out of its native client. Initially, its "Settings" dialog box was replaced by dedicated page in the <A href="/wiki/Settings_(Windows)" title="Settings (Windows)">Settings</A> app. In <A href="/wiki/Windows_10_Creators_Update" class="mw-redirect" title="Windows 10 Creators Update">Windows 10 Creators Update</A>, Windows Defender is renamed Windows Defender Antivirus to distinguish it from <A href="/wiki/Windows_Defender_Security_Center" class="mw-redirect" title="Windows Defender Security Center">Windows Defender Security Center</A>. The latter has become the default avenue to interface with Windows Defender.<SUP id="cite_ref-18" class="reference"><A href="#cite_note-18">[18]</A></SUP> While there is no shortcut on the Start menu for Windows Defender's native client, it can still run.<SUP id="cite_ref-19" class="reference"><A href="#cite_note-19">[19]</A></SUP><SUP id="cite_ref-20" class="reference"><A href="#cite_note-20">[20]</A></SUP></P>
<H2><SPAN class="mw-headline" id="Advanced_features">Advanced features</SPAN><SPAN class="mw-editsection"><SPAN class="mw-editsection-bracket">[</SPAN><A href="/w/index.php?title=Windows_Defender&action=edit&section=6" title="Edit section: Advanced features">edit</A><SPAN class="mw-editsection-bracket">]</SPAN></SPAN></H2>
<DIV class="thumb tright">
<DIV class="thumbinner" style="width:222px;"><A href="/wiki/File:Windows_Defender_EICAR.png" class="image"><IMG alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/3/38/Windows_Defender_EICAR.png/220px-Windows_Defender_EICAR.png" width="220" height="51" class="thumbimage" srcset="//upload.wikimedia.org/wikipedia/en/thumb/3/38/Windows_Defender_EICAR.png/330px-Windows_Defender_EICAR.png 1.5x, //upload.wikimedia.org/wikipedia/en/3/38/Windows_Defender_EICAR.png 2x" data-file-width="385" data-file-height="89" /></A>
<DIV class="thumbcaption">
<DIV class="magnify"><A href="/wiki/File:Windows_Defender_EICAR.png" class="internal" title="Enlarge"></A></DIV>
Windows Defender successfully blocks the <A href="/wiki/EICAR_test_file" title="EICAR test file">EICAR test file</A></DIV>
</DIV>
</DIV>
<DL>
<DT>Real-time protection</DT>
<DD>In the Windows Defender options, the user can configure <A href="/wiki/Real-time_protection" class="mw-redirect" title="Real-time protection">real-time protection</A> options.</DD>
<DT>Browser integration</DT>
<DD>Integration with <A href="/wiki/Internet_Explorer" title="Internet Explorer">Internet Explorer</A> and <A href="/wiki/Microsoft_Edge" title="Microsoft Edge">Microsoft Edge</A> enables files to be scanned as they are downloaded to detect malicious software inadvertently downloaded. Although it does not integrate with non-Microsoft <A href="/wiki/Web_browsers" class="mw-redirect" title="Web browsers">web browsers</A>, Windows Defender scans for malicious downloaded files as part of its real-time protection.</DD>
</DL>
<P>Windows 10's Anniversary Update introduced Limited Periodic Scanning, which optionally allows Windows Defender to scan a system periodically if another antivirus app is installed.<SUP id="cite_ref-21" class="reference"><A href="#cite_note-21">[21]</A></SUP> It also introduced Block at First Sight, which uses machine learning to predict whether a file is malicious.<SUP id="cite_ref-22" class="reference"><A href="#cite_note-22">[22]</A></SUP></P>
<H2><SPAN class="mw-headline" id="Windows_Vista-specific_functionality">Windows Vista-specific functionality</SPAN><SPAN class="mw-editsection"><SPAN class="mw-editsection-bracket">[</SPAN><A href="/w/index.php?title=Windows_Defender&action=edit&section=7" title="Edit section: Windows Vista-specific functionality">edit</A><SPAN class="mw-editsection-bracket">]</SPAN></SPAN></H2>
<P>Windows Defender had additional functionality in Windows Vista which was removed in subsequent versions of Windows.</P>
<DL>
<DT>Security agents</DT>
<DD>Security agents monitor the computer for malicious activities.</DD>
</DL>
<UL>
<LI><I>Auto Start</I> – Monitors lists of programs that are allowed to automatically run when the user starts the computer</LI>
<LI><I>System Configuration (settings)</I> – Monitors security-related settings in Windows</LI>
<LI><I>Internet Explorer Add-ons</I> – Monitors programs that automatically run when the user starts Internet Explorer</LI>
<LI><I>Internet Explorer Configurations (settings)</I> – Monitors browser security settings</LI>
<LI><I>Internet Explorer Downloads</I> – Monitors files and programs that are designed to work with Internet Explorer</LI>
<LI><I>Services and Drivers</I> – Monitors services and drivers as they interact with Windows and programs</LI>
<LI><I>Application Execution</I> – Monitors when programs start and any operations they perform while running</LI>
<LI><I>Application Registration</I> – Monitors tools and files in the operating system where programs can register to run at any time</LI>
<LI><I>Windows Add-ons</I> – Monitors add-on programs for Windows</LI>
</UL>
<DL>
<DT>Software Explorer</DT>
<DD>The <I>Advanced Tools</I> section allows users to discover potential vulnerabilities with a series of Software Explorers. They provide views of startup programs, currently running software, network connected applications, and <A href="/wiki/Winsock" title="Winsock">Winsock</A> providers (<A href="/wiki/Layered_Service_Provider" title="Layered Service Provider">Winsock LSPs</A>). In each Explorer, every element is rated as either "Known", "Unknown" or "Potentially Unwanted". The first and last categories carry a link to learn more about the particular item, and the second category invites users to submit the program to Microsoft SpyNet for analysis by community members.<SUP id="cite_ref-SoftwareExplorer_23-0" class="reference"><A href="#cite_note-SoftwareExplorer-23">[23]</A></SUP><SUP id="cite_ref-CNET_24-0" class="reference"><A href="#cite_note-CNET-24">[24]</A></SUP> The Software Explorer feature has been removed from Windows Defender in Windows 7.<SUP id="cite_ref-Windows7Annoyances_25-0" class="reference"><A href="#cite_note-Windows7Annoyances-25">[25]</A></SUP></DD>
</DL>
<DL>
<DT>Notification of startup programs that run as an administrator</DT>
<DD>Windows Defender in Windows Vista automatically blocks all startup items that require administrator privileges to run (this is considered suspicious behavior for a startup item). This automatic blocking is related to the <A href="/wiki/User_Account_Control" title="User Account Control">User Account Control</A> functionality in Windows Vista, and requires users to manually run each of these startup items each time they log in if they desire the item to run at startup.<SUP id="cite_ref-WindowsHasBlocked_26-0" class="reference"><A href="#cite_note-WindowsHasBlocked-26">[26]</A></SUP></DD>
</DL>
<DL>
<DT>User interface</DT>
<DD>In Windows Vista, it is possible to close the window and have the program run in the system tray while a scan is running. However, in Windows 7, this functionality was removed and the window must remain open while a scan is running.</DD>
</DL>
<H2><SPAN class="mw-headline" id="Windows_Defender_Offline">Windows Defender Offline</SPAN><SPAN class="mw-editsection"><SPAN class="mw-editsection-bracket">[</SPAN><A href="/w/index.php?title=Windows_Defender&action=edit&section=8" title="Edit section: Windows Defender Offline">edit</A><SPAN class="mw-editsection-bracket">]</SPAN></SPAN></H2>
<P>Windows Defender Offline (formerly known as <I>Standalone System Sweeper Beta</I><SUP id="cite_ref-27" class="reference"><A href="#cite_note-27">[27]</A></SUP>) is a bootable standalone antimalware program that runs from a bootable disk and is designed to scan infected systems while their operating systems are offline.<SUP id="cite_ref-DefenderOffline_28-0" class="reference"><A href="#cite_note-DefenderOffline-28">[28]</A></SUP> Since <A href="/wiki/Windows_10_Anniversary_Update" class="mw-redirect" title="Windows 10 Anniversary Update">Windows 10 Anniversary Update</A>, offline functionality is integrated into the regular Windows Defender program.<SUP id="cite_ref-29" class="reference"><A href="#cite_note-29">[29]</A></SUP></P>
<H2><SPAN class="mw-headline" id="Mitigated_security_vulnerability">Mitigated security vulnerability</SPAN><SPAN class="mw-editsection"><SPAN class="mw-editsection-bracket">[</SPAN><A href="/w/index.php?title=Windows_Defender&action=edit&section=9" title="Edit section: Mitigated security vulnerability">edit</A><SPAN class="mw-editsection-bracket">]</SPAN></SPAN></H2>
<P>On 5 May 2017, Tavis Ormandy, a vulnerability researcher for <A href="/wiki/Google" title="Google">Google</A>, discovered a <A href="/wiki/Security_vulnerability" class="mw-redirect" title="Security vulnerability">security vulnerability</A> in the <A href="/wiki/JavaScript" title="JavaScript">JavaScript</A> analysis module (NScript) of Microsoft Antimalware Engine (MsMpEngine) that impacted Windows Defender, <A href="/wiki/Microsoft_Security_Essentials" title="Microsoft Security Essentials">Microsoft Security Essentials</A> and <A href="/wiki/Forefront_Endpoint_Protection" class="mw-redirect" title="Forefront Endpoint Protection">System Center Endpoint Protection</A>. By 8 May 2017, Microsoft had released a patch to all affected systems. <I><A href="/wiki/Ars_Technica" title="Ars Technica">Ars Technica</A></I> commended Microsoft for its unprecedented patching speed and said that the disaster had been averted.<SUP id="cite_ref-30" class="reference"><A href="#cite_note-30">[30]</A></SUP><SUP id="cite_ref-31" class="reference"><A href="#cite_note-31">[31]</A></SUP></P>
<H2><SPAN class="mw-headline" id="See_also">See also</SPAN><SPAN class="mw-editsection"><SPAN class="mw-editsection-bracket">[</SPAN><A href="/w/index.php?title=Windows_Defender&action=edit&section=10" title="Edit section: See also">edit</A><SPAN class="mw-editsection-bracket">]</SPAN></SPAN></H2>
<UL>
<LI><A href="/wiki/Security_and_safety_features_new_to_Windows_Vista" title="Security and safety features new to Windows Vista">Security and safety features new to Windows Vista</A></LI>
</UL>
<H2><SPAN class="mw-headline" id="References">References</SPAN><SPAN class="mw-editsection"><SPAN class="mw-editsection-bracket">[</SPAN><A href="/w/index.php?title=Windows_Defender&action=edit&section=11" title="Edit section: References">edit</A><SPAN class="mw-editsection-bracket">]</SPAN></SPAN></H2>
<DIV class="reflist columns references-column-width" style="-moz-column-width: 30em; -webkit-column-width: 30em; column-width: 30em; list-style-type: decimal;">
<OL class="references">
<LI id="cite_note-1"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-1"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A rel="nofollow" class="external text" href="https://web.archive.org/web/20120429013550/http://www.microsoft.com/en-us/download/details.aspx?id=17">"Windows Defender"</A>. <I>Download Center</I>. <A href="/wiki/Microsoft" title="Microsoft">Microsoft</A>. 23 May 2007. Archived from <A rel="nofollow" class="external text" href="http://www.microsoft.com/en-us/download/details.aspx?id=17">the original</A> on 29 April 2012.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Download+Center&rft.atitle=Windows+Defender&rft.date=2007-05-23&rft_id=http%3A%2F%2Fwww.microsoft.com%2Fen-us%2Fdownload%2Fdetails.aspx%3Fid%3D17&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-Windows_Defender_Overview-2"><SPAN class="mw-cite-backlink">^ <A href="#cite_ref-Windows_Defender_Overview_2-0"><SPAN class="cite-accessibility-label">Jump up to: </SPAN><SUP><I><B>a</B></I></SUP></A> <A href="#cite_ref-Windows_Defender_Overview_2-1"><SUP><I><B>b</B></I></SUP></A></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A rel="nofollow" class="external text" href="https://www.computerhope.com/jargon/w/windefen.htm">"What is Windows Defender?"</A>. <I><A href="/wiki/Computer_Hope" title="Computer Hope">Computer Hope</A></I><SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">31 December</SPAN> 2017</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Computer+Hope&rft.atitle=What+is+Windows+Defender%3F&rft_id=https%3A%2F%2Fwww.computerhope.com%2Fjargon%2Fw%2Fwindefen.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-3"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-3"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web">Shultz, Greg. <A rel="nofollow" class="external text" href="http://www.techrepublic.com/article/windows-defender-past-present-and-future/">"Windows Defender: Past, present, and future"</A><SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">13 June</SPAN> 2017</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Windows+Defender%3A+Past%2C+present%2C+and+future&rft.aulast=Shultz&rft.aufirst=Greg&rft_id=http%3A%2F%2Fwww.techrepublic.com%2Farticle%2Fwindows-defender-past-present-and-future%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-4"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-4"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A rel="nofollow" class="external text" href="https://support.microsoft.com/en-us/help/154850/how-to-remove-an-activex-control-in-windows">"How to Remove an Active-X Control in Windows"</A>. <I><A href="/wiki/Microsoft" title="Microsoft">Microsoft</A></I><SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">31 December</SPAN> 2017</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Microsoft&rft.atitle=How+to+Remove+an+Active-X+Control+in+Windows&rft_id=https%3A%2F%2Fsupport.microsoft.com%2Fen-us%2Fhelp%2F154850%2Fhow-to-remove-an-activex-control-in-windows&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-5"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-5"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><A rel="nofollow" class="external free" href="http://www.windowscentral.com/whats-new-windows-defender-windows-10-anniversary-update">http://www.windowscentral.com/whats-new-windows-defender-windows-10-anniversary-update</A></SPAN></LI>
<LI id="cite_note-Winsupersite-6"><SPAN class="mw-cite-backlink">^ <A href="#cite_ref-Winsupersite_6-0"><SPAN class="cite-accessibility-label">Jump up to: </SPAN><SUP><I><B>a</B></I></SUP></A> <A href="#cite_ref-Winsupersite_6-1"><SUP><I><B>b</B></I></SUP></A> <A href="#cite_ref-Winsupersite_6-2"><SUP><I><B>c</B></I></SUP></A></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A href="/wiki/Paul_Thurrott" title="Paul Thurrott">Thurrot, Paul</A> (6 October 2010). <A rel="nofollow" class="external text" href="http://winsupersite.com/product-review/microsoft-windows-anti-spyware">"Microsoft Windows Anti-Spyware Preview: Paul Thurott's SuperSite for Windows"</A>. SuperSite for Windows<SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">26 November</SPAN> 2013</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Microsoft+Windows+Anti-Spyware+Preview%3A+Paul+Thurott%27s+SuperSite+for+Windows&rft.pub=SuperSite+for+Windows&rft.date=2010-10-06&rft.aulast=Thurrot&rft.aufirst=Paul&rft_id=http%3A%2F%2Fwinsupersite.com%2Fproduct-review%2Fmicrosoft-windows-anti-spyware&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-7"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-7"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A rel="nofollow" class="external text" href="http://www.microsoft.com/presspass/press/2004/dec04/12-16GIANTPR.mspx">"Microsoft Acquires Anti-Spyware Leader GIANT Company"</A>. <I>PressPass</I>. <A href="/wiki/Microsoft" title="Microsoft">Microsoft</A>. December 16, 2004<SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">11 November</SPAN> 2009</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=PressPass&rft.atitle=Microsoft+Acquires+Anti-Spyware+Leader+GIANT+Company&rft.date=2004-12-16&rft_id=http%3A%2F%2Fwww.microsoft.com%2Fpresspass%2Fpress%2F2004%2Fdec04%2F12-16GIANTPR.mspx&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-8"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-8"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A rel="nofollow" class="external text" href="http://news.microsoft.com/2005/02/15/gates-highlights-progress-on-security-outlines-next-steps-for-continued-innovation/">"Gates Highlights Progress on Security, Outlines Next Steps for Continued Innovation"</A>. <I>PressPass</I>. Microsoft Corporation. February 15, 2005<SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">11 November</SPAN> 2009</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=PressPass&rft.atitle=Gates+Highlights+Progress+on+Security%2C+Outlines+Next+Steps+for+Continued+Innovation&rft.date=2005-02-15&rft_id=http%3A%2F%2Fnews.microsoft.com%2F2005%2F02%2F15%2Fgates-highlights-progress-on-security-outlines-next-steps-for-continued-innovation%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-9"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-9"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A href="/wiki/Paul_Thurrott" title="Paul Thurrott">Thurrott, Paul</A> (14 February 2006). <A rel="nofollow" class="external text" href="http://winsupersite.com/article/product-review/windows-defender-beta-2-review">"Windows Defender Beta 2 Review: Paul Thurrott's SuperSite for Windows"</A>. SuperSite for Windows<SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">26 November</SPAN> 2013</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Windows+Defender+Beta+2+Review%3A+Paul+Thurrott%27s+SuperSite+for+Windows&rft.pub=SuperSite+for+Windows&rft.date=2006-02-14&rft.aulast=Thurrott&rft.aufirst=Paul&rft_id=http%3A%2F%2Fwinsupersite.com%2Farticle%2Fproduct-review%2Fwindows-defender-beta-2-review&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-10"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-10"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A rel="nofollow" class="external text" href="https://web.archive.org/web/20090130015455/http://microsoft.com/germany/windows/products/winfamily/defender/default.mspx">"Windows Defender: Startseite"</A> (in German). Microsoft Corporation. Archived from <A rel="nofollow" class="external text" href="http://www.microsoft.com/germany/windows/products/winfamily/defender/default.mspx">the original</A> on 30 January 2009<SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">8 May</SPAN> 2011</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Windows+Defender%3A+Startseite&rft.pub=Microsoft+Corporation&rft_id=http%3A%2F%2Fwww.microsoft.com%2Fgermany%2Fwindows%2Fproducts%2Fwinfamily%2Fdefender%2Fdefault.mspx&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-11"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-11"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A rel="nofollow" class="external text" href="https://web.archive.org/web/20100118105205/http://www.microsoft.com/japan/protect/default.mspx">"マイクロソフト セキュリティ At Home"</A> (in Japanese). Microsoft Corporation. Archived from <A rel="nofollow" class="external text" href="http://www.microsoft.com/japan/protect/default.mspx">the original</A> on 18 January 2010<SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">8 May</SPAN> 2011</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=%E3%83%9E%E3%82%A4%E3%82%AF%E3%83%AD%E3%82%BD%E3%83%95%E3%83%88+%E3%82%BB%E3%82%AD%E3%83%A5%E3%83%AA%E3%83%86%E3%82%A3+At+Home&rft.pub=Microsoft+Corporation&rft_id=http%3A%2F%2Fwww.microsoft.com%2Fjapan%2Fprotect%2Fdefault.mspx&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-initial_release-12"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-initial_release_12-0"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A href="/wiki/Paul_Thurrott" title="Paul Thurrott">Thurrott, Paul</A> (24 October 2006). <A rel="nofollow" class="external text" href="http://www.windowsitpro.com/Article/ArticleID/93991/93991.html">"Finally, Microsoft Ships Windows Defender"</A>. <I>Windows IT Pro</I><SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">8 May</SPAN> 2011</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Windows+IT+Pro&rft.atitle=Finally%2C+Microsoft+Ships+Windows+Defender&rft.date=2006-10-24&rft.aulast=Thurrott&rft.aufirst=Paul&rft_id=http%3A%2F%2Fwww.windowsitpro.com%2FArticle%2FArticleID%2F93991%2F93991.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-SuperSite-13"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-SuperSite_13-0"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web">Thurrott, Paul (18 June 2009). <A rel="nofollow" class="external text" href="http://www.winsupersite.com/win7/mse_beta.asp">"Microsoft Security Essentials Public Beta"</A>. <I>Paul Thurrott's SuperSite for Windows</I><SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">8 May</SPAN> 2011</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Paul+Thurrott%27s+SuperSite+for+Windows&rft.atitle=Microsoft+Security+Essentials+Public+Beta&rft.date=2009-06-18&rft.aulast=Thurrott&rft.aufirst=Paul&rft_id=http%3A%2F%2Fwww.winsupersite.com%2Fwin7%2Fmse_beta.asp&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-14"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-14"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web">Hau, Kevin (23 June 2009). <A rel="nofollow" class="external text" href="http://answers.microsoft.com/en-us/protect/forum/protect_start/windows-defender-and-microsoft-security-essentials/5309cb8d-02e1-40e8-974f-0dcedb9ab9fd">"Windows Defender and Microsoft Security Essentials"</A>. <I>Microsoft Answers</I>. Microsoft Corporation<SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">8 May</SPAN> 2011</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Microsoft+Answers&rft.atitle=Windows+Defender+and+Microsoft+Security+Essentials&rft.date=2009-06-23&rft.aulast=Hau&rft.aufirst=Kevin&rft_id=http%3A%2F%2Fanswers.microsoft.com%2Fen-us%2Fprotect%2Fforum%2Fprotect_start%2Fwindows-defender-and-microsoft-security-essentials%2F5309cb8d-02e1-40e8-974f-0dcedb9ab9fd&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-15"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-15"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation news">Marius, Marius Oiaga (30 August 2010). <A rel="nofollow" class="external text" href="http://news.softpedia.com/news/Microsoft-Security-Essentials-1-0-and-2-0-Disable-Windows-Defender-154342.shtml">"Microsoft Security Essentials 1.0 and 2.0 Disable Windows Defender"</A>. <I><A href="/wiki/Softpedia" title="Softpedia">Softpedia</A></I>. SoftNews NET SRL<SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">8 May</SPAN> 2011</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Softpedia&rft.atitle=Microsoft+Security+Essentials+1.0+and+2.0+Disable+Windows+Defender&rft.date=2010-08-30&rft.aulast=Marius&rft.aufirst=Marius+Oiaga&rft_id=http%3A%2F%2Fnews.softpedia.com%2Fnews%2FMicrosoft-Security-Essentials-1-0-and-2-0-Disable-Windows-Defender-154342.shtml&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-16"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-16"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><A rel="nofollow" class="external text" href="http://www.winsupersite.com/article/windows8/windows-8-consumer-preview-set-windows-8-web-installer-142449">Windows 8 Consumer Preview: Set Up Windows 8 with the Web Installer</A></SPAN></LI>
<LI id="cite_note-17"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-17"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A rel="nofollow" class="external text" href="https://support.microsoft.com/en-us/help/17187/windows-10-protect-your-pc">"Protect your PC"</A>. <I>Support</I> (12 ed.). <A href="/wiki/Microsoft" title="Microsoft">Microsoft</A>. 8 September 2016<SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">14 December</SPAN> 2016</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Support&rft.atitle=Protect+your+PC&rft.date=2016-09-08&rft_id=https%3A%2F%2Fsupport.microsoft.com%2Fen-us%2Fhelp%2F17187%2Fwindows-10-protect-your-pc&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-18"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-18"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web">Lich, Brian (18 May 2017). <A rel="nofollow" class="external text" href="https://docs.microsoft.com/en-us/windows/threat-protection/windows-defender-antivirus/windows-defender-security-center-antivirus">"Windows Defender Antivirus in the Windows Defender Security Center app"</A>. <I>docs.microsoft.com</I>. <A href="/wiki/Microsoft" title="Microsoft">Microsoft</A>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=docs.microsoft.com&rft.atitle=Windows+Defender+Antivirus+in+the+Windows+Defender+Security+Center+app&rft.date=2017-05-18&rft.aulast=Lich&rft.aufirst=Brian&rft_id=https%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Fwindows%2Fthreat-protection%2Fwindows-defender-antivirus%2Fwindows-defender-security-center-antivirus&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-19"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-19"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web">Popa, Bogdan (24 August 2017). <A rel="nofollow" class="external text" href="http://news.softpedia.com/news/quick-tip-use-the-old-windows-defender-in-windows-10-creators-update-515104.shtml">"Quick Tip: Use the Old Windows Defender in Windows 10 Creators Update"</A>. <I><A href="/wiki/Softpedia" title="Softpedia">Softpedia</A></I>. SoftNews.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Softpedia&rft.atitle=Quick+Tip%3A+Use+the+Old+Windows+Defender+in+Windows+10+Creators+Update&rft.date=2017-08-24&rft.aulast=Popa&rft.aufirst=Bogdan&rft_id=http%3A%2F%2Fnews.softpedia.com%2Fnews%2Fquick-tip-use-the-old-windows-defender-in-windows-10-creators-update-515104.shtml&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-20"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-20"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web">Williams, Wayne (24 August 2017). <A rel="nofollow" class="external text" href="https://betanews.com/2017/04/24/how-to-get-the-classic-windows-defender-back-on-windows-10-creators-update/">"How to get the classic Windows Defender back on Windows 10 Creators Update"</A>. <I>BetaNews</I>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=BetaNews&rft.atitle=How+to+get+the+classic+Windows+Defender+back+on+Windows+10+Creators+Update&rft.date=2017-08-24&rft.aulast=Williams&rft.aufirst=Wayne&rft_id=https%3A%2F%2Fbetanews.com%2F2017%2F04%2F24%2Fhow-to-get-the-classic-windows-defender-back-on-windows-10-creators-update%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-21"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-21"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><A rel="nofollow" class="external free" href="http://www.windowscentral.com/whats-new-windows-defender-windows-10-anniversary-update">http://www.windowscentral.com/whats-new-windows-defender-windows-10-anniversary-update</A></SPAN></LI>
<LI id="cite_note-22"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-22"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><A rel="nofollow" class="external free" href="http://betanews.com/2016/11/18/windows-10-block-at-first-sight-protection-in-windows-defender/">http://betanews.com/2016/11/18/windows-10-block-at-first-sight-protection-in-windows-defender/</A></SPAN></LI>
<LI id="cite_note-SoftwareExplorer-23"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-SoftwareExplorer_23-0"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A rel="nofollow" class="external text" href="https://web.archive.org/web/20091014033953/http://windows.microsoft.com/en-us/windows-vista/using-software-explorer-in-windows-defender">"Using Software Explorer in Windows Defender"</A>. <I>Support</I>. <A href="/wiki/Microsoft" title="Microsoft">Microsoft</A>. Archived from <A rel="nofollow" class="external text" href="http://windows.microsoft.com/en-us/windows-vista/using-software-explorer-in-windows-defender">the original</A> on October 14, 2009<SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">April 26,</SPAN> 2017</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Support&rft.atitle=Using+Software+Explorer+in+Windows+Defender&rft_id=http%3A%2F%2Fwindows.microsoft.com%2Fen-us%2Fwindows-vista%2Fusing-software-explorer-in-windows-defender&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-CNET-24"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-CNET_24-0"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web">O'Reilly, Dennis (April 22, 2008). <A rel="nofollow" class="external text" href="http://www.cnet.com/news/software-explorer-keeps-unneeded-apps-from-auto-starting/">"Software Explorer keeps unneeded apps from auto-starting"</A>. <I><A href="/wiki/CNET" title="CNET">CNET</A></I>. <A href="/wiki/CBS_Interactive" title="CBS Interactive">CBS Interactive</A><SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">May 9,</SPAN> 2015</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=CNET&rft.atitle=Software+Explorer+keeps+unneeded+apps+from+auto-starting&rft.date=2008-04-22&rft.aulast=O%27Reilly&rft.aufirst=Dennis&rft_id=http%3A%2F%2Fwww.cnet.com%2Fnews%2Fsoftware-explorer-keeps-unneeded-apps-from-auto-starting%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-Windows7Annoyances-25"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-Windows7Annoyances_25-0"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A href="/wiki/Paul_Thurrott" title="Paul Thurrott">Thurrott, Paul</A> (October 6, 2010). <A rel="nofollow" class="external text" href="http://winsupersite.com/article/windows-7/windows-7-annoyances">"Windows 7 Annoyances"</A>. <I>Supersite for Windows</I>. <A href="/wiki/Penton_(company)" title="Penton (company)">Penton</A><SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">May 9,</SPAN> 2015</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Supersite+for+Windows&rft.atitle=Windows+7+Annoyances&rft.date=2010-10-06&rft.aulast=Thurrott&rft.aufirst=Paul&rft_id=http%3A%2F%2Fwinsupersite.com%2Farticle%2Fwindows-7%2Fwindows-7-annoyances&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-WindowsHasBlocked-26"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-WindowsHasBlocked_26-0"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A rel="nofollow" class="external text" href="https://web.archive.org/web/20150407064153/https://support.microsoft.com/en-us/kb/930367">"Error message when you start a Windows Vista-based computer: 'Windows has blocked some startup programs<SPAN style="padding-right:0.2em;">'</SPAN>"</A>. <I>Support</I>. <A href="/wiki/Microsoft" title="Microsoft">Microsoft</A>. September 23, 2011. Archived from <A rel="nofollow" class="external text" href="https://support.microsoft.com/en-us/kb/930367">the original</A> on April 7, 2015<SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">April 26,</SPAN> 2017</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Support&rft.atitle=Error+message+when+you+start+a+Windows+Vista-based+computer%3A+%27Windows+has+blocked+some+startup+programs%27&rft.date=2011-09-23&rft_id=https%3A%2F%2Fsupport.microsoft.com%2Fen-us%2Fkb%2F930367&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-27"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-27"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><A rel="nofollow" class="external text" href="http://connect.microsoft.com/systemsweeper">Microsoft Standalone System Sweeper</A></SPAN></LI>
<LI id="cite_note-DefenderOffline-28"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-DefenderOffline_28-0"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A rel="nofollow" class="external text" href="http://windows.microsoft.com/en-CA/windows/what-is-windows-defender-offline">"Windows Defender Offline"</A>. <I>Microsoft.com</I>. Microsoft<SPAN class="reference-accessdate">. Retrieved <SPAN class="nowrap">1 January</SPAN> 2012</SPAN>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Microsoft.com&rft.atitle=Windows+Defender+Offline&rft_id=http%3A%2F%2Fwindows.microsoft.com%2Fen-CA%2Fwindows%2Fwhat-is-windows-defender-offline&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-29"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-29"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><A rel="nofollow" class="external text" href="https://support.microsoft.com/en-gb/help/17466/windows-defender-offline-help-protect-my-pc">"Help protect my PC with Windows Defender Offline"</A> Microsoft. Accessed 4 October 2016</SPAN></LI>
<LI id="cite_note-30"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-30"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web">Anthony, Sebastian (9 May 2017). <A rel="nofollow" class="external text" href="https://arstechnica.com/information-technology/2017/05/windows-defender-nscript-remote-vulnerability/">"Massive vulnerability in Windows Defender leaves most Windows PCs vulnerable"</A>. <I><A href="/wiki/Ars_Technica" title="Ars Technica">Ars Technica</A></I>. <A href="/wiki/Cond%C3%A9_Nast" title="Condé Nast">Condé Nast</A>.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Ars+Technica&rft.atitle=Massive+vulnerability+in+Windows+Defender+leaves+most+Windows+PCs+vulnerable&rft.date=2017-05-09&rft.aulast=Anthony&rft.aufirst=Sebastian&rft_id=https%3A%2F%2Farstechnica.com%2Finformation-technology%2F2017%2F05%2Fwindows-defender-nscript-remote-vulnerability%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
<LI id="cite_note-31"><SPAN class="mw-cite-backlink"><B><A href="#cite_ref-31"><SPAN class="cite-accessibility-label">Jump up </SPAN>^</A></B></SPAN> <SPAN class="reference-text"><CITE class="citation web"><A rel="nofollow" class="external text" href="https://technet.microsoft.com/en-us/library/security/4022344">"Microsoft Security Advisory 4022344"</A>. <I><A href="/wiki/Microsoft_TechNet" title="Microsoft TechNet">TechNet</A></I>. <A href="/wiki/Microsoft" title="Microsoft">Microsoft</A>. 8 May 2017.</CITE><SPAN title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=TechNet&rft.atitle=Microsoft+Security+Advisory+4022344&rft.date=2017-05-08&rft_id=https%3A%2F%2Ftechnet.microsoft.com%2Fen-us%2Flibrary%2Fsecurity%2F4022344&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWindows+Defender" class="Z3988"><SPAN style="display:none;"> </SPAN></SPAN></SPAN></LI>
</OL>
</DIV>
<H2><SPAN class="mw-headline" id="External_links">External links</SPAN><SPAN class="mw-editsection"><SPAN class="mw-editsection-bracket">[</SPAN><A href="/w/index.php?title=Windows_Defender&action=edit&section=12" title="Edit section: External links">edit</A><SPAN class="mw-editsection-bracket">]</SPAN></SPAN></H2>
<UL>
<LI><A rel="nofollow" class="external text" href="http://www.microsoft.com/security/">Microsoft Security Portal</A></LI>
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<TD class="navbox-abovebelow" colspan="2">
<DIV>Numbers in brackets are the years of the initial release of the product.</DIV>
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<TH scope="row" class="navbox-group" style="width:1%">For Windows</TH>
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<LI><A href="/wiki/Windows_Firewall" title="Windows Firewall">Windows Firewall</A> [2001]</LI>
<LI><A href="/wiki/Microsoft_Baseline_Security_Analyzer" title="Microsoft Baseline Security Analyzer">Baseline Security Analyzer</A> [2004]</LI>
<LI><A href="/wiki/Malicious_Software_Removal_Tool" title="Malicious Software Removal Tool">Malicious Software Removal Tool</A> [2005]</LI>
<LI><A class="mw-selflink selflink">Windows Defender</A> [2006]</LI>
<LI><A href="/wiki/Microsoft_SmartScreen" title="Microsoft SmartScreen">Microsoft SmartScreen</A> [2006]</LI>
<LI><A href="/wiki/Microsoft_Security_Essentials" title="Microsoft Security Essentials">Microsoft Security Essentials</A> [2009]</LI>
<LI><A href="/wiki/Microsoft_Safety_Scanner" title="Microsoft Safety Scanner">Microsoft Safety Scanner</A> [2011]</LI>
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<TH scope="row" class="navbox-group" style="width:1%">For <A href="/wiki/Windows_Server" title="Windows Server">Windows Server</A></TH>
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<UL>
<LI><A href="/wiki/Exchange_Online_Protection" title="Exchange Online Protection">Exchange Online Protection</A> [2007]</LI>
<LI><A href="/wiki/System_Center_Data_Protection_Manager" title="System Center Data Protection Manager">System Center Data Protection Manager</A> [2007]</LI>
<LI><A href="/wiki/Forefront_Identity_Manager" title="Forefront Identity Manager">Identity Manager</A> [2010]</LI>
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<TH scope="row" class="navbox-group" style="width:1%;background-color:#E6E6E6;">Discontinued</TH>
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<UL>
<LI><A href="/wiki/MSAV" title="MSAV">MSAV</A> [1993]</LI>
<LI><A href="/wiki/Microsoft_Forefront_Threat_Management_Gateway" title="Microsoft Forefront Threat Management Gateway">Threat Management Gateway</A> [1997]</LI>
<LI><A href="/wiki/Windows_Live_OneCare_Safety_Scanner" title="Windows Live OneCare Safety Scanner">OneCare Safety Scanner</A> [2006]</LI>
<LI><A href="/wiki/Microsoft_Forefront_Unified_Access_Gateway" title="Microsoft Forefront Unified Access Gateway">Unified Access Gateway</A> [2007]</LI>
<LI><A href="/wiki/Windows_Live_OneCare" title="Windows Live OneCare">Windows Live OneCare</A> [2006]</LI>
<LI><A href="/wiki/RootkitRevealer" title="RootkitRevealer">RootkitRevealer</A> [2006]</LI>
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<TH scope="row" class="navbox-group" style="width:1%">Related topics</TH>
<TD class="navbox-list navbox-even hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/Data_Execution_Prevention" class="mw-redirect" title="Data Execution Prevention">Data Execution Prevention</A></LI>
<LI><A href="/wiki/Kernel_Patch_Protection" title="Kernel Patch Protection">Kernel Patch Protection</A></LI>
<LI><A href="/wiki/Mandatory_Integrity_Control" title="Mandatory Integrity Control">Mandatory Integrity Control</A></LI>
<LI><A href="/wiki/MS_Antivirus_(malware)" title="MS Antivirus (malware)">MS Antivirus (malware)</A></LI>
<LI><A href="/wiki/User_Account_Control" title="User Account Control">User Account Control</A></LI>
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<DIV class="noprint metadata" role="navigation" aria-label="Portals" style="font-weight:bold;padding:0.3em 1.7em 0.1em;font-size:88%;text-align:center">
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<LI style="display:inline"><SPAN style="display:inline-block;white-space:nowrap"><SPAN style="margin:0 0.5em"><A href="/wiki/File:Monitor_padlock.svg" class="image"><IMG alt="Monitor padlock.svg" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Monitor_padlock.svg/23px-Monitor_padlock.svg.png" width="23" height="21" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Monitor_padlock.svg/35px-Monitor_padlock.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Monitor_padlock.svg/46px-Monitor_padlock.svg.png 2x" data-file-width="486" data-file-height="445" /></A></SPAN><A href="/wiki/Portal:Computer_security" title="Portal:Computer security">Computer security portal</A></SPAN></LI>
<LI style="display:inline"><SPAN style="display:inline-block;white-space:nowrap"><SPAN style="margin:0 0.5em"><A href="/wiki/File:M_box.svg" class="image"><IMG alt="M box.svg" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/94/M_box.svg/21px-M_box.svg.png" width="21" height="21" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/94/M_box.svg/32px-M_box.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/94/M_box.svg/42px-M_box.svg.png 2x" data-file-width="220" data-file-height="220" /></A></SPAN><A href="/wiki/Portal:Microsoft" title="Portal:Microsoft">Microsoft portal</A></SPAN></LI>
<LI style="display:inline"><SPAN style="display:inline-block;white-space:nowrap"><SPAN style="margin:0 0.5em"><A href="/wiki/File:Crystal_Clear_device_cdrom_unmount.png" class="image"><IMG alt="Crystal Clear device cdrom unmount.png" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/10/Crystal_Clear_device_cdrom_unmount.png/21px-Crystal_Clear_device_cdrom_unmount.png" width="21" height="21" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/10/Crystal_Clear_device_cdrom_unmount.png/32px-Crystal_Clear_device_cdrom_unmount.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/10/Crystal_Clear_device_cdrom_unmount.png/42px-Crystal_Clear_device_cdrom_unmount.png 2x" data-file-width="128" data-file-height="128" /></A></SPAN><A href="/wiki/Portal:Software" title="Portal:Software">Software portal</A></SPAN></LI>
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<DIV id="Microsoft_Windows_components" style="font-size:114%;margin:0 4em"><A href="/wiki/List_of_Microsoft_Windows_components" title="List of Microsoft Windows components">Microsoft Windows components</A></DIV>
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<TR style="display: none;">
<TH scope="row" class="navbox-group" style="width:1%">Management<BR />
tools</TH>
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<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/App_Installer" title="App Installer">App Installer</A></LI>
<LI><A href="/wiki/Cmd.exe" title="Cmd.exe">Command Prompt</A></LI>
<LI><A href="/wiki/Control_Panel_(Windows)" title="Control Panel (Windows)">Control Panel</A>
<UL>
<LI><A href="/wiki/List_of_Control_Panel_applets_(Windows)" class="mw-redirect" title="List of Control Panel applets (Windows)">Applets</A></LI>
</UL>
</LI>
<LI><A href="/wiki/Device_Manager" title="Device Manager">Device Manager</A></LI>
<LI><A href="/wiki/Disk_Cleanup" title="Disk Cleanup">Disk Cleanup</A></LI>
<LI><A href="/wiki/Disk_Defragmenter_(Windows)" title="Disk Defragmenter (Windows)">Disk Defragmenter</A></LI>
<LI><A href="/wiki/Driver_Verifier" title="Driver Verifier">Driver Verifier</A></LI>
<LI><A href="/wiki/Event_Viewer" title="Event Viewer">Event Viewer</A></LI>
<LI><A href="/wiki/IExpress" title="IExpress">IExpress</A></LI>
<LI><A href="/wiki/Microsoft_Management_Console" title="Microsoft Management Console">Management Console</A></LI>
<LI><A href="/wiki/Netsh" title="Netsh">Netsh</A></LI>
<LI><A href="/wiki/Performance_Monitor" title="Performance Monitor">Performance Monitor</A></LI>
<LI><A href="/wiki/Recovery_Console" title="Recovery Console">Recovery Console</A></LI>
<LI><A href="/wiki/Resource_Monitor" title="Resource Monitor">Resource Monitor</A></LI>
<LI><A href="/wiki/Settings_(Windows)" title="Settings (Windows)">Settings</A></LI>
<LI><A href="/wiki/Sysprep" title="Sysprep">Sysprep</A></LI>
<LI><A href="/wiki/MSConfig" title="MSConfig">System Configuration</A></LI>
<LI><A href="/wiki/System_File_Checker" title="System File Checker">System File Checker</A></LI>
<LI><A href="/wiki/System_Information_(Windows)" title="System Information (Windows)">System Information</A></LI>
<LI><A href="/wiki/System_Policy_Editor" title="System Policy Editor">System Policy Editor</A></LI>
<LI><A href="/wiki/System_Restore" title="System Restore">System Restore</A></LI>
<LI><A href="/wiki/Task_Manager_(Windows)" title="Task Manager (Windows)">Task Manager</A></LI>
<LI><A href="/wiki/Windows_Error_Reporting" title="Windows Error Reporting">Windows Error Reporting</A></LI>
<LI><A href="/wiki/Windows_Ink" title="Windows Ink">Windows Ink</A></LI>
<LI><A href="/wiki/Windows_Installer" title="Windows Installer">Windows Installer</A></LI>
<LI><A href="/wiki/PowerShell" title="PowerShell">PowerShell</A></LI>
<LI><A href="/wiki/Windows_Update" title="Windows Update">Windows Update</A>
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<LI><A href="/wiki/Windows_Insider" title="Windows Insider">Windows Insider</A></LI>
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<LI><A href="/wiki/Windows_Recovery_Environment" class="mw-redirect" title="Windows Recovery Environment">WinRE</A></LI>
<LI><A href="/wiki/Windows_Management_Instrumentation" title="Windows Management Instrumentation">WMI</A></LI>
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<TR style="display: none;">
<TH scope="row" class="navbox-group" style="width:1%"><A href="/wiki/Computer_program" title="Computer program">Apps</A></TH>
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<LI><A href="/wiki/Alarms_%26_Clock" title="Alarms & Clock">Alarms & Clock</A></LI>
<LI><A href="/wiki/Calculator_(Windows)" class="mw-redirect" title="Calculator (Windows)">Calculator</A></LI>
<LI><A href="/wiki/Calendar_(Windows)" title="Calendar (Windows)">Calendar</A></LI>
<LI><A href="/wiki/Camera_(Windows)" class="mw-redirect" title="Camera (Windows)">Camera</A></LI>
<LI><A href="/wiki/Character_Map_(Windows)" title="Character Map (Windows)">Character Map</A></LI>
<LI><A href="/wiki/Cortana" title="Cortana">Cortana</A></LI>
<LI><A href="/wiki/Microsoft_Edge" title="Microsoft Edge">Edge</A></LI>
<LI><A href="/wiki/Windows_Fax_and_Scan" title="Windows Fax and Scan">Fax and Scan</A></LI>
<LI><A href="/wiki/Feedback_Hub" title="Feedback Hub">Feedback Hub</A></LI>
<LI><A href="/wiki/Get_Help" title="Get Help">Get Help</A></LI>
<LI><A href="/wiki/Groove_Music" title="Groove Music">Groove Music</A></LI>
<LI><A href="/wiki/Magnifier_(Windows)" title="Magnifier (Windows)">Magnifier</A></LI>
<LI><A href="/wiki/Mail_(Windows)" title="Mail (Windows)">Mail</A></LI>
<LI><A href="/wiki/Microsoft_Messaging" title="Microsoft Messaging">Messaging</A></LI>
<LI><A href="/wiki/Windows_Maps" title="Windows Maps">Maps</A></LI>
<LI><A href="/wiki/Windows_Media_Player" title="Windows Media Player">Media Player</A></LI>
<LI><A href="/wiki/Microsoft_Movies_%26_TV" title="Microsoft Movies & TV">Movies & TV</A></LI>
<LI><A href="/wiki/Windows_Mobility_Center" title="Windows Mobility Center">Mobility Center</A></LI>
<LI><A href="/wiki/MSN_apps#Money" class="mw-redirect" title="MSN apps">Money</A></LI>
<LI><A href="/wiki/MSN_apps#News" class="mw-redirect" title="MSN apps">News</A></LI>
<LI><A href="/wiki/Microsoft_Narrator" title="Microsoft Narrator">Narrator</A></LI>
<LI><A href="/wiki/Microsoft_Notepad" title="Microsoft Notepad">Notepad</A></LI>
<LI><A href="/wiki/OneDrive" title="OneDrive">OneDrive</A></LI>
<LI><A href="/wiki/Microsoft_OneNote" title="Microsoft OneNote">OneNote</A></LI>
<LI><A href="/wiki/Microsoft_Paint" title="Microsoft Paint">Paint</A></LI>
<LI><A href="/wiki/Paint_3D" title="Paint 3D">Paint 3D</A></LI>
<LI><A href="/wiki/People_(Windows)" title="People (Windows)">People</A></LI>
<LI><A href="/wiki/Phone_Companion" title="Phone Companion">Phone Companion</A></LI>
<LI><A href="/wiki/Microsoft_Photos" title="Microsoft Photos">Photos</A></LI>
<LI><A href="/wiki/Quick_Assist" title="Quick Assist">Quick Assist</A></LI>
<LI><A href="/wiki/Snipping_Tool" title="Snipping Tool">Snipping Tool</A></LI>
<LI><A href="/wiki/Windows_Speech_Recognition" title="Windows Speech Recognition">Speech Recognition</A></LI>
<LI><A href="/wiki/Skype" title="Skype">Skype</A></LI>
<LI><A href="/wiki/MSN_apps#Sports" class="mw-redirect" title="MSN apps">Sports</A></LI>
<LI><A href="/wiki/Sticky_Notes" title="Sticky Notes">Sticky Notes</A></LI>
<LI><A href="/wiki/View_3D" title="View 3D">View 3D</A></LI>
<LI><A href="/wiki/Microsoft_Store_(digital)" title="Microsoft Store (digital)">Store</A></LI>
<LI><A href="/wiki/Tips_(Windows)" title="Tips (Windows)">Tips</A></LI>
<LI><A href="/wiki/Voice_Recorder_(Windows)" title="Voice Recorder (Windows)">Voice Recorder</A></LI>
<LI><A href="/wiki/Microsoft_Wallet" class="mw-redirect" title="Microsoft Wallet">Wallet</A></LI>
<LI><A href="/wiki/MSN_apps#Weather" class="mw-redirect" title="MSN apps">Weather</A></LI>
<LI><A href="/wiki/Windows_To_Go" title="Windows To Go">Windows To Go</A></LI>
<LI><A href="/wiki/Windows_Story_Remix" title="Windows Story Remix">Windows Story Remix</A></LI>
<LI><A href="/wiki/WordPad" title="WordPad">WordPad</A></LI>
<LI><A href="/wiki/Xbox_(software)" title="Xbox (software)">Xbox</A></LI>
</UL>
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</TR>
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<TH scope="row" class="navbox-group" style="width:1%"><A href="/wiki/Windows_shell" title="Windows shell">Shell</A></TH>
<TD class="navbox-list navbox-odd hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
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<UL>
<LI><A href="/wiki/Action_Center" title="Action Center">Action Center</A></LI>
<LI><A href="/wiki/Windows_Aero" title="Windows Aero">Aero</A></LI>
<LI><A href="/wiki/AutoPlay" title="AutoPlay">AutoPlay</A></LI>
<LI><A href="/wiki/AutoRun" title="AutoRun">AutoRun</A></LI>
<LI><A href="/wiki/ClearType" title="ClearType">ClearType</A></LI>
<LI><A href="/wiki/File_Explorer" title="File Explorer">Explorer</A></LI>
<LI><A href="/wiki/Windows_Search" title="Windows Search">Search</A>
<UL>
<LI><A href="/wiki/Indexing_Service" title="Indexing Service">Indexing Service</A></LI>
<LI><A href="/wiki/IFilter" title="IFilter">IFilter</A></LI>
<LI><A href="/wiki/Virtual_folder#Windows" title="Virtual folder">Saved search</A></LI>
<LI><A href="/wiki/Windows_Shell_namespace" title="Windows Shell namespace">Namespace</A></LI>
<LI><A href="/wiki/Special_folder" title="Special folder">Special folder</A></LI>
</UL>
</LI>
<LI><A href="/wiki/Start_menu" title="Start menu">Start menu</A></LI>
<LI><A href="/wiki/Taskbar" title="Taskbar">Taskbar</A></LI>
<LI><A href="/wiki/Task_View" title="Task View">Task View</A></LI>
<LI><A href="/wiki/Windows_Spotlight" title="Windows Spotlight">Windows Spotlight</A></LI>
<LI><A href="/wiki/Windows_XP_visual_styles" title="Windows XP visual styles">Windows XP visual styles</A></LI>
</UL>
</DIV>
</TD>
</TR>
<TR style="display: none;">
<TH scope="row" class="navbox-group" style="width:1%"><A href="/wiki/Windows_service" title="Windows service">Services</A></TH>
<TD class="navbox-list navbox-even hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/Service_Control_Manager" title="Service Control Manager">Service Control Manager</A></LI>
<LI><A href="/wiki/Background_Intelligent_Transfer_Service" title="Background Intelligent Transfer Service">BITS</A></LI>
<LI><A href="/wiki/Common_Log_File_System" title="Common Log File System">CLFS</A></LI>
<LI><A href="/wiki/Multimedia_Class_Scheduler_Service" title="Multimedia Class Scheduler Service">Multimedia Class Scheduler</A></LI>
<LI><A href="/wiki/Shadow_Copy" title="Shadow Copy">Shadow Copy</A></LI>
<LI><A href="/wiki/Windows_Task_Scheduler" title="Windows Task Scheduler">Task Scheduler</A></LI>
<LI><A href="/wiki/Windows_Error_Reporting" title="Windows Error Reporting">Error Reporting</A></LI>
<LI><A href="/wiki/Wireless_Zero_Configuration" title="Wireless Zero Configuration">Wireless Zero Configuration</A></LI>
</UL>
</DIV>
</TD>
</TR>
<TR style="display: none;">
<TH scope="row" class="navbox-group" style="width:1%"><A href="/wiki/File_system" title="File system">File systems</A></TH>
<TD class="navbox-list navbox-odd hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/ISO_9660" title="ISO 9660">CDFS</A></LI>
<LI><A href="/wiki/Distributed_File_System_(Microsoft)" title="Distributed File System (Microsoft)">DFS</A></LI>
<LI><A href="/wiki/ExFAT" title="ExFAT">exFAT</A></LI>
<LI><A href="/wiki/Installable_File_System" title="Installable File System">IFS</A></LI>
<LI><A href="/wiki/File_Allocation_Table" title="File Allocation Table">FAT</A></LI>
<LI><A href="/wiki/NTFS" title="NTFS">NTFS</A>
<UL>
<LI><A href="/wiki/Hard_link" title="Hard link">Hard link</A></LI>
<LI><A href="/wiki/NTFS_junction_point" title="NTFS junction point">Junction point</A></LI>
<LI><A href="/wiki/NTFS_volume_mount_point" title="NTFS volume mount point">Mount Point</A></LI>
<LI><A href="/wiki/NTFS_reparse_point" title="NTFS reparse point">Reparse point</A></LI>
<LI><A href="/wiki/NTFS_symbolic_link" title="NTFS symbolic link">Symbolic link</A></LI>
<LI><A href="/wiki/Transactional_NTFS" title="Transactional NTFS">TxF</A></LI>
<LI><A href="/wiki/Encrypting_File_System" title="Encrypting File System">EFS</A></LI>
</UL>
</LI>
<LI><A href="/wiki/ReFS" title="ReFS">ReFS</A></LI>
<LI><A href="/wiki/Universal_Disk_Format" title="Universal Disk Format">UDF</A></LI>
</UL>
</DIV>
</TD>
</TR>
<TR style="display: none;">
<TH scope="row" class="navbox-group" style="width:1%"><A href="/wiki/Server_(computing)" title="Server (computing)">Server</A></TH>
<TD class="navbox-list navbox-even hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/Windows_domain" title="Windows domain">Domains</A></LI>
<LI><A href="/wiki/Active_Directory" title="Active Directory">Active Directory</A></LI>
<LI><A href="/wiki/Microsoft_DNS" title="Microsoft DNS">DNS</A></LI>
<LI><A href="/wiki/Group_Policy" title="Group Policy">Group Policy</A></LI>
<LI><A href="/wiki/Roaming_user_profile" title="Roaming user profile">Roaming user profiles</A></LI>
<LI><A href="/wiki/Folder_redirection" title="Folder redirection">Folder redirection</A></LI>
<LI><A href="/wiki/Microsoft_Distributed_Transaction_Coordinator" title="Microsoft Distributed Transaction Coordinator">Distributed Transaction Coordinator</A></LI>
<LI><A href="/wiki/Microsoft_Message_Queuing" title="Microsoft Message Queuing">MSMQ</A></LI>
<LI><A href="/wiki/Windows_Media_Services" title="Windows Media Services">Windows Media Services</A></LI>
<LI><A href="/wiki/Active_Directory_Rights_Management_Services" title="Active Directory Rights Management Services">Rights Management Services</A></LI>
<LI><A href="/wiki/Internet_Information_Services" title="Internet Information Services">IIS</A></LI>
<LI><A href="/wiki/Remote_Desktop_Services" title="Remote Desktop Services">Remote Desktop Services</A></LI>
<LI><A href="/wiki/Windows_Server_Update_Services" title="Windows Server Update Services">WSUS</A></LI>
<LI><A href="/wiki/Microsoft_SharePoint" class="mw-redirect" title="Microsoft SharePoint">SharePoint</A></LI>
<LI><A href="/wiki/Network_Access_Protection" title="Network Access Protection">Network Access Protection</A></LI>
<LI><A href="/wiki/Microsoft_Personal_Web_Server" title="Microsoft Personal Web Server">PWS</A></LI>
<LI><A href="/wiki/File_Replication_Service" title="File Replication Service">DFS Replication</A></LI>
<LI><A href="/wiki/Remote_Differential_Compression" title="Remote Differential Compression">Remote Differential Compression</A></LI>
<LI><A href="/wiki/Print_Services_for_UNIX" title="Print Services for UNIX">Print Services for UNIX</A></LI>
<LI><A href="/wiki/Remote_Installation_Services" title="Remote Installation Services">Remote Installation Services</A></LI>
<LI><A href="/wiki/Windows_Deployment_Services" title="Windows Deployment Services">Windows Deployment Services</A></LI>
<LI><A href="/wiki/Windows_System_Resource_Manager" title="Windows System Resource Manager">System Resource Manager</A></LI>
<LI><A href="/wiki/Hyper-V" title="Hyper-V">Hyper-V</A></LI>
<LI><A href="/wiki/Server_Core" title="Server Core">Server Core</A></LI>
</UL>
</DIV>
</TD>
</TR>
<TR style="display: none;">
<TH scope="row" class="navbox-group" style="width:1%"><A href="/wiki/Software_architecture" title="Software architecture">Architecture</A></TH>
<TD class="navbox-list navbox-odd hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/Architecture_of_Windows_NT" title="Architecture of Windows NT">Architecture of Windows NT</A></LI>
<LI><A href="/wiki/Windows_startup_process" title="Windows startup process">Startup process</A>
<UL>
<LI><A href="/wiki/Windows_NT_startup_process" title="Windows NT startup process">NT</A></LI>
<LI><A href="/wiki/Windows_Vista_startup_process" title="Windows Vista startup process">Vista</A></LI>
</UL>
</LI>
<LI><A href="/wiki/Client/Server_Runtime_Subsystem" title="Client/Server Runtime Subsystem">CSRSS</A></LI>
<LI><A href="/wiki/Desktop_Window_Manager" title="Desktop Window Manager">Desktop Window Manager</A></LI>
<LI><A href="/wiki/Portable_Executable" title="Portable Executable">Portable Executable</A>
<UL>
<LI><A href="/wiki/.exe" title=".exe">EXE</A></LI>
<LI><A href="/wiki/Dynamic-link_library" title="Dynamic-link library">DLL</A></LI>
</UL>
</LI>
<LI><A href="/wiki/Enhanced_Write_Filter" title="Enhanced Write Filter">Enhanced Write Filter</A></LI>
<LI><A href="/wiki/Graphics_Device_Interface" title="Graphics Device Interface">Graphics Device Interface</A></LI>
<LI><A href="/wiki/Hal.dll" class="mw-redirect" title="Hal.dll">hal.dll</A></LI>
<LI><A href="/wiki/I/O_request_packet" title="I/O request packet">I/O request packet</A></LI>
<LI><A href="/wiki/Windows_Imaging_Format" title="Windows Imaging Format">Imaging Format</A></LI>
<LI><A href="/wiki/Kernel_Transaction_Manager" title="Kernel Transaction Manager">Kernel Transaction Manager</A></LI>
<LI><A href="/wiki/Microsoft_Windows_library_files" title="Microsoft Windows library files">Library files</A></LI>
<LI><A href="/wiki/Logical_Disk_Manager" title="Logical Disk Manager">Logical Disk Manager</A></LI>
<LI><A href="/wiki/Local_Security_Authority_Subsystem_Service" title="Local Security Authority Subsystem Service">LSASS</A></LI>
<LI><A href="/wiki/MinWin" title="MinWin">MinWin</A></LI>
<LI><A href="/wiki/NTLDR" title="NTLDR">NTLDR</A></LI>
<LI><A href="/wiki/Ntoskrnl.exe" title="Ntoskrnl.exe">Ntoskrnl.exe</A></LI>
<LI><A href="/wiki/Object_Manager_(Windows)" title="Object Manager (Windows)">Object Manager</A></LI>
<LI><A href="/wiki/Open_XML_Paper_Specification" title="Open XML Paper Specification">Open XML Paper Specification</A></LI>
<LI><A href="/wiki/Windows_Registry" title="Windows Registry">Registry</A></LI>
<LI><A href="/wiki/Windows_Resource_Protection" title="Windows Resource Protection">Resource Protection</A></LI>
<LI><A href="/wiki/Security_Account_Manager" title="Security Account Manager">Security Account Manager</A></LI>
<LI><A href="/wiki/Server_Message_Block" title="Server Message Block">Server Message Block</A></LI>
<LI><A href="/wiki/Shadow_Copy" title="Shadow Copy">Shadow Copy</A></LI>
<LI><A href="/wiki/Session_Manager_Subsystem" title="Session Manager Subsystem">SMSS</A></LI>
<LI><A href="/wiki/System_Idle_Process" title="System Idle Process">System Idle Process</A></LI>
<LI><A href="/wiki/Windows_USER" title="Windows USER">USER</A></LI>
<LI><A href="/wiki/Windows_Hardware_Error_Architecture" title="Windows Hardware Error Architecture">WHEA</A></LI>
<LI><A href="/wiki/Win32_console" title="Win32 console">Win32 console</A></LI>
<LI><A href="/wiki/Winlogon" title="Winlogon">Winlogon</A></LI>
<LI><A href="/wiki/WinUSB" title="WinUSB">WinUSB</A></LI>
</UL>
</DIV>
</TD>
</TR>
<TR style="display: none;">
<TH scope="row" class="navbox-group" style="width:1%">Security</TH>
<TD class="navbox-list navbox-even hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/Security_and_Maintenance" title="Security and Maintenance">Security and Maintenance</A></LI>
<LI><A href="/wiki/BitLocker" title="BitLocker">BitLocker</A></LI>
<LI><A href="/wiki/Data_Execution_Prevention" class="mw-redirect" title="Data Execution Prevention">Data Execution Prevention</A></LI>
<LI><A href="/wiki/Microsoft_Family_Safety" class="mw-redirect" title="Microsoft Family Safety">Family Safety</A></LI>
<LI><A href="/wiki/Kernel_Patch_Protection" title="Kernel Patch Protection">Kernel Patch Protection</A></LI>
<LI><A href="/wiki/Mandatory_Integrity_Control" title="Mandatory Integrity Control">Mandatory Integrity Control</A></LI>
<LI><A href="/wiki/Protected_Media_Path" title="Protected Media Path">Protected Media Path</A></LI>
<LI><A href="/wiki/User_Account_Control" title="User Account Control">User Account Control</A></LI>
<LI><A href="/wiki/User_Interface_Privilege_Isolation" title="User Interface Privilege Isolation">User Interface Privilege Isolation</A></LI>
<LI><A class="mw-selflink selflink">Windows Defender</A></LI>
<LI><A href="/wiki/Windows_Firewall" title="Windows Firewall">Windows Firewall</A></LI>
</UL>
</DIV>
</TD>
</TR>
<TR style="display: none;">
<TH scope="row" class="navbox-group" style="width:1%">Compatibility</TH>
<TD class="navbox-list navbox-odd hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/COMMAND.COM" title="COMMAND.COM">COMMAND.COM</A></LI>
<LI><A href="/wiki/Virtual_DOS_machine" title="Virtual DOS machine">Virtual DOS machine</A></LI>
<LI><A href="/wiki/Windows_on_Windows" title="Windows on Windows">Windows on Windows</A></LI>
<LI><A href="/wiki/WoW64" title="WoW64">WoW64</A></LI>
<LI><A href="/wiki/Windows_Subsystem_for_Linux" title="Windows Subsystem for Linux">Windows Subsystem for Linux</A></LI>
</UL>
</DIV>
</TD>
</TR>
<TR style="display: none;">
<TH scope="row" class="navbox-group" style="width:1%"><A href="/wiki/Application_programming_interface" title="Application programming interface">API</A></TH>
<TD class="navbox-list navbox-even hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/Active_Scripting" title="Active Scripting">Active Scripting</A>
<UL>
<LI><A href="/wiki/Windows_Script_Host" title="Windows Script Host">WSH</A></LI>
<LI><A href="/wiki/VBScript" title="VBScript">VBScript</A></LI>
<LI><A href="/wiki/JScript" title="JScript">JScript</A></LI>
</UL>
</LI>
<LI><A href="/wiki/Component_Object_Model" title="Component Object Model">COM</A>
<UL>
<LI><A href="/wiki/ActiveX" title="ActiveX">ActiveX</A></LI>
<LI><A href="/wiki/ActiveX_Document" title="ActiveX Document">ActiveX Document</A></LI>
<LI><A href="/wiki/COM_Structured_Storage" title="COM Structured Storage">COM Structured storage</A></LI>
<LI><A href="/wiki/Distributed_Component_Object_Model" title="Distributed Component Object Model">DCOM</A></LI>
<LI><A href="/wiki/Object_Linking_and_Embedding" title="Object Linking and Embedding">OLE</A></LI>
<LI><A href="/wiki/OLE_Automation" title="OLE Automation">OLE Automation</A></LI>
<LI><A href="/wiki/Microsoft_Transaction_Server" title="Microsoft Transaction Server">Transaction Server</A></LI>
</UL>
</LI>
<LI><A href="/wiki/DirectX" title="DirectX">DirectX</A></LI>
<LI><A href="/wiki/.NET_Framework" title=".NET Framework">.NET Framework</A></LI>
<LI><A href="/wiki/Universal_Windows_Platform" title="Universal Windows Platform">Universal Windows Platform</A></LI>
<LI><A href="/wiki/Windows_Mixed_Reality" title="Windows Mixed Reality">Windows Mixed Reality</A></LI>
<LI><A href="/wiki/Windows_Runtime" title="Windows Runtime">Windows Runtime</A></LI>
<LI><A href="/wiki/WinUSB" title="WinUSB">WinUSB</A></LI>
</UL>
</DIV>
</TD>
</TR>
<TR style="display: none;">
<TH scope="row" class="navbox-group" style="width:1%"><A href="/wiki/PC_game" title="PC game">Games</A></TH>
<TD class="navbox-list navbox-odd hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/Microsoft_Solitaire_Collection" title="Microsoft Solitaire Collection">Solitaire Collection</A></LI>
</UL>
</DIV>
</TD>
</TR>
<TR style="display: none;">
<TH scope="row" class="navbox-group" style="width:1%">Discontinued</TH>
<TD class="navbox-list navbox-odd hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em"></DIV>
<TABLE class="nowraplinks navbox-subgroup" style="border-spacing:0">
<TBODY><TR>
<TH scope="row" class="navbox-group" style="width:1%"><A href="/wiki/PC_game" title="PC game">Games</A></TH>
<TD class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/Full_Tilt!_Pinball#3D_Pinball_for_Windows_–_Space_Cadet" title="Full Tilt! Pinball">3D Pinball</A></LI>
<LI><A href="/wiki/Chess_Titans" title="Chess Titans">Chess Titans</A></LI>
<LI><A href="/wiki/Microsoft_FreeCell" title="Microsoft FreeCell">FreeCell</A></LI>
<LI><A href="/wiki/Microsoft_Hearts" title="Microsoft Hearts">Hearts</A></LI>
<LI><A href="/wiki/InkBall" title="InkBall">InkBall</A></LI>
<LI><A href="/wiki/Windows_Ultimate_Extras" title="Windows Ultimate Extras">Hold 'Em</A></LI>
<LI><A href="/wiki/Purble_Place" title="Purble Place">Purble Place</A></LI>
<LI><A href="/wiki/Reversi" title="Reversi">Reversi</A></LI>
<LI><A href="/wiki/Microsoft_Spider_Solitaire" title="Microsoft Spider Solitaire">Spider Solitaire</A></LI>
<LI><A href="/wiki/Microsoft_Solitaire" title="Microsoft Solitaire">Solitaire</A></LI>
<LI><A href="/wiki/Microsoft_Tinker" title="Microsoft Tinker">Tinker</A></LI>
</UL>
</DIV>
</TD>
</TR>
<TR>
<TH scope="row" class="navbox-group" style="width:1%"><A href="/wiki/Computer_program" title="Computer program">Apps</A></TH>
<TD class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/ActiveMovie" title="ActiveMovie">ActiveMovie</A></LI>
<LI><A href="/wiki/Windows_Anytime_Upgrade" title="Windows Anytime Upgrade">Anytime Upgrade</A></LI>
<LI><A href="/wiki/Windows_Address_Book" title="Windows Address Book">Address Book</A></LI>
<LI><A href="/wiki/Backup_and_Restore" title="Backup and Restore">Backup and Restore</A></LI>
<LI><A href="/wiki/Cardfile" title="Cardfile">Cardfile</A></LI>
<LI><A href="/wiki/Windows_CardSpace" title="Windows CardSpace">CardSpace</A></LI>
<LI><A href="/wiki/Windows_Contacts" title="Windows Contacts">Contacts</A></LI>
<LI><A href="/wiki/Windows_Desktop_Gadgets" title="Windows Desktop Gadgets">Desktop Gadgets</A></LI>
<LI><A href="/wiki/Microsoft_Diagnostics" title="Microsoft Diagnostics">Diagnostics</A></LI>
<LI><A href="/wiki/DriveSpace" title="DriveSpace">DriveSpace</A></LI>
<LI><A href="/wiki/Windows_DVD_Maker" title="Windows DVD Maker">DVD Maker</A></LI>
<LI><A href="/wiki/Windows_Easy_Transfer" title="Windows Easy Transfer">Easy Transfer</A></LI>
<LI><A href="/wiki/Microsoft_Fax" class="mw-redirect" title="Microsoft Fax">Fax</A></LI>
<LI><A href="/wiki/File_Manager_(Windows)" title="File Manager (Windows)">File Manager</A></LI>
<LI><A href="/wiki/MSN_Food_%26_Drink" class="mw-redirect" title="MSN Food & Drink">Food & Drink</A></LI>
<LI><A href="/wiki/Help_and_Support_Center" class="mw-redirect" title="Help and Support Center">Help and Support Center</A></LI>
<LI><A href="/wiki/MSN_Health_%26_Fitness" class="mw-redirect" title="MSN Health & Fitness">Health & Fitness</A></LI>
<LI><A href="/wiki/HyperTerminal" class="mw-redirect" title="HyperTerminal">HyperTerminal</A></LI>
<LI><A href="/wiki/Internet_Explorer" title="Internet Explorer">Internet Explorer</A></LI>
<LI><A href="/wiki/Windows_Journal" title="Windows Journal">Journal</A></LI>
<LI><A href="/wiki/Windows_Media_Center" title="Windows Media Center">Media Center</A></LI>
<LI><A href="/wiki/Windows_Meeting_Space" title="Windows Meeting Space">Meeting Space</A></LI>
<LI><A href="/wiki/Windows_Messaging" title="Windows Messaging">Messaging</A></LI>
<LI><A href="/wiki/Windows_Messenger" title="Windows Messenger">Messenger</A></LI>
<LI><A href="/wiki/Windows_Mobile_Device_Center" title="Windows Mobile Device Center">Mobile Device Center</A></LI>
<LI><A href="/wiki/Windows_Movie_Maker" title="Windows Movie Maker">Movie Maker</A></LI>
<LI><A href="/wiki/MSN_Dial-up" title="MSN Dial-up">MSN Dial-up</A></LI>
<LI><A href="/wiki/Microsoft_NetMeeting" title="Microsoft NetMeeting">NetMeeting</A></LI>
<LI><A href="/wiki/NTBackup" title="NTBackup">NTBackup</A></LI>
<LI><A href="/wiki/Outlook_Express" title="Outlook Express">Outlook Express</A></LI>
<LI><A href="/wiki/Travel_(Windows)" class="mw-redirect" title="Travel (Windows)">Travel</A></LI>
<LI><A href="/wiki/Windows_Photo_Gallery" title="Windows Photo Gallery">Photo Gallery</A></LI>
<LI><A href="/wiki/Windows_Photo_Viewer" title="Windows Photo Viewer">Photo Viewer</A></LI>
<LI><A href="/wiki/Program_Manager" title="Program Manager">Program Manager</A></LI>
<LI><A href="/wiki/Problem_Steps_Recorder" class="mw-redirect" title="Problem Steps Recorder">Steps Recorder</A></LI>
<LI><A href="/wiki/WinHelp" title="WinHelp">WinHelp</A></LI>
<LI><A href="/wiki/Microsoft_Write" title="Microsoft Write">Write</A></LI>
</UL>
</DIV>
</TD>
</TR>
<TR>
<TH scope="row" class="navbox-group" style="width:1%">Others</TH>
<TD class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/Microsoft_ScanDisk" title="Microsoft ScanDisk">ScanDisk</A></LI>
<LI><A href="/wiki/Windows_File_Protection" title="Windows File Protection">File Protection</A></LI>
<LI><A href="/wiki/Media_Control_Interface" title="Media Control Interface">Media Control Interface</A></LI>
<LI><A href="/wiki/Next-Generation_Secure_Computing_Base" title="Next-Generation Secure Computing Base">Next-Generation Secure Computing Base</A></LI>
<LI><A href="/wiki/Microsoft_POSIX_subsystem" title="Microsoft POSIX subsystem">POSIX subsystem</A></LI>
<LI><A href="/wiki/Interix" title="Interix">Interix</A></LI>
<LI><A href="/wiki/Video_for_Windows" title="Video for Windows">Video for Windows</A></LI>
<LI><A href="/wiki/Windows_SideShow" title="Windows SideShow">Windows SideShow</A></LI>
<LI><A href="/wiki/Windows_Services_for_UNIX" title="Windows Services for UNIX">Windows Services for UNIX</A></LI>
<LI><A href="/wiki/Windows_System_Assessment_Tool" title="Windows System Assessment Tool">Windows System Assessment Tool</A></LI>
<LI><A href="/wiki/WinFS" title="WinFS">WinFS</A></LI>
</UL>
</DIV>
</TD>
</TR>
</TBODY></TABLE>
</TD>
</TR>
<TR style="display: none;">
<TH scope="row" class="navbox-group" style="width:1%">Spun off to<BR />
<A href="/wiki/Microsoft_Store_(digital)" title="Microsoft Store (digital)">Microsoft Store</A></TH>
<TD class="navbox-list navbox-odd hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/DVD_Player_(Windows)" title="DVD Player (Windows)">DVD Player</A></LI>
<LI><A href="/wiki/Hover!" title="Hover!">Hover!</A></LI>
<LI><A href="/wiki/Microsoft_Mahjong" title="Microsoft Mahjong">Mahjong</A></LI>
<LI><A href="/wiki/Microsoft_Minesweeper" title="Microsoft Minesweeper">Minesweeper</A></LI>
</UL>
</DIV>
</TD>
</TR>
</TBODY></TABLE>
</DIV>
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<DIV id="Antivirus_software" style="font-size:114%;margin:0 4em"><A href="/wiki/Antivirus_software" title="Antivirus software">Antivirus software</A></DIV>
</TH>
</TR>
<TR style="display: none;">
<TH scope="row" class="navbox-group" style="width:1%">Companies</TH>
<TD class="navbox-list navbox-odd hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em"></DIV>
<TABLE class="nowraplinks navbox-subgroup" style="border-spacing:0">
<TBODY><TR>
<TH scope="row" class="navbox-group" style="width:1%">Major</TH>
<TD class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/Agnitum" title="Agnitum">Agnitum</A></LI>
<LI><A href="/wiki/Avast_Software" title="Avast Software">Avast Software</A></LI>
<LI><A href="/wiki/AVG_Technologies" title="AVG Technologies">AVG Technologies</A></LI>
<LI><A href="/wiki/Avira" title="Avira">Avira</A></LI>
<LI><A href="/wiki/Bitdefender" title="Bitdefender">Bitdefender</A></LI>
<LI><A href="/wiki/Comodo_Group" title="Comodo Group">Comodo</A></LI>
<LI><A href="/wiki/Dr._Web" title="Dr. Web">Dr. Web</A></LI>
<LI><A href="/wiki/ESET" title="ESET">ESET</A></LI>
<LI><A href="/wiki/F-Secure" title="F-Secure">F-Secure</A></LI>
<LI><A href="/wiki/Kaspersky_Lab" title="Kaspersky Lab">Kaspersky</A></LI>
<LI><A href="/wiki/McAfee" title="McAfee">McAfee</A></LI>
<LI><A href="/wiki/Microsoft" title="Microsoft">Microsoft</A></LI>
<LI><A href="/wiki/Panda_Security" title="Panda Security">Panda</A></LI>
<LI><A href="/wiki/Quick_Heal" title="Quick Heal">Quick Heal</A></LI>
<LI><A href="/wiki/Qihoo_360" title="Qihoo 360">Qihoo 360</A></LI>
<LI><A href="/wiki/Sophos" title="Sophos">Sophos</A></LI>
<LI><A href="/wiki/Symantec" title="Symantec">Symantec</A></LI>
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<DIV style="padding:0em 0.25em">
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<LI><A href="/wiki/AhnLab_Inc" class="mw-redirect" title="AhnLab Inc">AhnLab</A></LI>
<LI><A href="/wiki/Cisco_Systems" title="Cisco Systems">Cisco</A></LI>
<LI><A href="/wiki/Check_Point" title="Check Point">Check Point</A></LI>
<LI><A href="/wiki/ClamWin" title="ClamWin">ClamWin</A></LI>
<LI><A href="/wiki/Fortinet" title="Fortinet">Fortinet</A></LI>
<LI><A href="/wiki/FRISK_Software_International" title="FRISK Software International">FRISK</A></LI>
<LI><A href="/wiki/G_Data_Software" title="G Data Software">G Data</A></LI>
<LI><A href="/wiki/Intego" title="Intego">Intego</A></LI>
<LI><A href="/wiki/Kingsoft" title="Kingsoft">Kingsoft</A></LI>
<LI><A href="/wiki/Lavasoft" title="Lavasoft">Lavasoft</A></LI>
<LI><A href="/wiki/Malwarebytes" title="Malwarebytes">Malwarebytes</A></LI>
<LI><A href="/wiki/TrustPort" title="TrustPort">TrustPort</A></LI>
<LI><A href="/wiki/VirusBlokAda" class="mw-redirect" title="VirusBlokAda">VirusBlokAda</A></LI>
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<TD class="navbox-list navbox-odd hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px">
<DIV style="padding:0em 0.25em"></DIV>
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<TH scope="row" class="navbox-group" style="width:1%">Desktop,<BR />
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<UL>
<LI><A href="/wiki/AhnLab_Inc" class="mw-redirect" title="AhnLab Inc">AhnLab V3 Internet Security</A></LI>
<LI><A href="/wiki/Avast_Antivirus" title="Avast Antivirus">Avast Antivirus</A></LI>
<LI><A href="/wiki/AVG_(software)" class="mw-redirect" title="AVG (software)">AVG</A></LI>
<LI><A href="/wiki/Avira" title="Avira">Avira Internet Security</A></LI>
<LI><A href="/wiki/Bitdefender" title="Bitdefender">Bitdefender</A></LI>
<LI><A href="/wiki/ClamWin" title="ClamWin">ClamWin</A></LI>
<LI><A href="/wiki/Clam_AntiVirus" title="Clam AntiVirus">Clam AntiVirus</A></LI>
<LI><A href="/wiki/Comodo_Antivirus" class="mw-redirect" title="Comodo Antivirus">Comodo Antivirus</A></LI>
<LI><A href="/wiki/Comodo_Internet_Security" title="Comodo Internet Security">Comodo Internet Security</A></LI>
<LI><A href="/wiki/Dr._Web" title="Dr. Web">Dr. Web</A></LI>
<LI><A href="/wiki/ESET_NOD32" title="ESET NOD32">ESET NOD32</A></LI>
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<LI><A href="/wiki/Kaspersky_Anti-Virus" title="Kaspersky Anti-Virus">Kaspersky Anti-Virus</A></LI>
<LI><A href="/wiki/Kaspersky_Internet_Security" title="Kaspersky Internet Security">Kaspersky Internet Security</A></LI>
<LI><A href="/wiki/Intego" title="Intego">Mac Internet Security</A></LI>
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<LI><A href="/wiki/McAfee_VirusScan" title="McAfee VirusScan">McAfee VirusScan</A></LI>
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<LI><A href="/wiki/Immunet" title="Immunet">Immunet</A></LI>
<LI><A href="/wiki/Element_Anti-Virus" title="Element Anti-Virus">Element Anti-Virus</A></LI>
<LI><A href="/wiki/Norton_AntiVirus" title="Norton AntiVirus">Norton AntiVirus</A></LI>
<LI><A href="/wiki/Norton_Internet_Security" title="Norton Internet Security">Norton Internet Security</A></LI>
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<LI><A href="/wiki/Avast_Antivirus" title="Avast Antivirus">Avast Antivirus</A></LI>
<LI><A href="/wiki/AVG_(software)" class="mw-redirect" title="AVG (software)">AVG AntiVirus</A></LI>
<LI><A href="/wiki/Avira" title="Avira">Avira Free Android Security</A></LI>
<LI><A href="/wiki/Bitdefender" title="Bitdefender">Bitdefender Mobile Security</A></LI>
<LI><A href="/wiki/Cheetah_Mobile" title="Cheetah Mobile">CM Security</A></LI>
<LI><A href="/wiki/Comodo_Mobile_Security" title="Comodo Mobile Security">Comodo Mobile Security</A></LI>
<LI><A href="/wiki/Dr._Web" title="Dr. Web">Dr. Web Mobile Security Suite</A></LI>
<LI><A href="/wiki/NOD32" class="mw-redirect" title="NOD32">ESET Mobile Security</A></LI>
<LI><A href="/wiki/F-Secure" title="F-Secure">F-Secure Mobile Security</A></LI>
<LI><A href="/wiki/G_Data_Software" title="G Data Software">G Data Internet Security</A></LI>
<LI><A href="/wiki/Lookout_Mobile_Security" class="mw-redirect" title="Lookout Mobile Security">Lookout Mobile Security</A></LI>
<LI><A href="/wiki/McAfee" title="McAfee">McAfee Mobile Security</A></LI>
<LI><A href="/wiki/Sourcefire" title="Sourcefire">FireAMP Mobile</A></LI>
<LI><A href="/wiki/Trend_Micro" title="Trend Micro">Trend Micro Mobile Security</A></LI>
<LI><A href="/wiki/TrustPort" title="TrustPort">TrustPort Mobile Security</A></LI>
<LI><A href="/wiki/VirusBarrier" class="mw-redirect" title="VirusBarrier">VirusBarrier</A></LI>
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<DIV style="padding:0em 0.25em">
<UL>
<LI><A href="/wiki/Comparison_of_antivirus_software" title="Comparison of antivirus software">Comparison of antivirus software</A></LI>
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					<LI class="interlanguage-link interwiki-ar"><A href="https://ar.wikipedia.org/wiki/%D9%88%D9%8A%D9%86%D8%AF%D9%88%D8%B2_%D8%AF%D9%8A%D9%81%D9%8A%D9%86%D8%AF%D8%B1" title="ويندوز ديفيندر – Arabic" lang="ar" hreflang="ar" class="interlanguage-link-target">العربية</A></LI><LI class="interlanguage-link interwiki-cs"><A href="https://cs.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Czech" lang="cs" hreflang="cs" class="interlanguage-link-target">Čeština</A></LI><LI class="interlanguage-link interwiki-da"><A href="https://da.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Danish" lang="da" hreflang="da" class="interlanguage-link-target">Dansk</A></LI><LI class="interlanguage-link interwiki-de"><A href="https://de.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – German" lang="de" hreflang="de" class="interlanguage-link-target">Deutsch</A></LI><LI class="interlanguage-link interwiki-el"><A href="https://el.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Greek" lang="el" hreflang="el" class="interlanguage-link-target">Ελληνικά</A></LI><LI class="interlanguage-link interwiki-es"><A href="https://es.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Spanish" lang="es" hreflang="es" class="interlanguage-link-target">Español</A></LI><LI class="interlanguage-link interwiki-fa"><A href="https://fa.wikipedia.org/wiki/%D9%88%DB%8C%D9%86%D8%AF%D9%88%D8%B2_%D8%AF%DB%8C%D9%81%D9%86%D8%AF%D8%B1" title="ویندوز دیفندر – Persian" lang="fa" hreflang="fa" class="interlanguage-link-target">فارسی</A></LI><LI class="interlanguage-link interwiki-fr"><A href="https://fr.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – French" lang="fr" hreflang="fr" class="interlanguage-link-target">Français</A></LI><LI class="interlanguage-link interwiki-ko"><A href="https://ko.wikipedia.org/wiki/%EC%9C%88%EB%8F%84%EC%9A%B0_%EB%94%94%ED%8E%9C%EB%8D%94" title="윈도우 디펜더 – Korean" lang="ko" hreflang="ko" class="interlanguage-link-target">한국어</A></LI><LI class="interlanguage-link interwiki-id"><A href="https://id.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Indonesian" lang="id" hreflang="id" class="interlanguage-link-target">Bahasa Indonesia</A></LI><LI class="interlanguage-link interwiki-it"><A href="https://it.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Italian" lang="it" hreflang="it" class="interlanguage-link-target">Italiano</A></LI><LI class="interlanguage-link interwiki-he"><A href="https://he.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Hebrew" lang="he" hreflang="he" class="interlanguage-link-target">עברית</A></LI><LI class="interlanguage-link interwiki-ms"><A href="https://ms.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Malay" lang="ms" hreflang="ms" class="interlanguage-link-target">Bahasa Melayu</A></LI><LI class="interlanguage-link interwiki-nl"><A href="https://nl.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Dutch" lang="nl" hreflang="nl" class="interlanguage-link-target">Nederlands</A></LI><LI class="interlanguage-link interwiki-ja"><A href="https://ja.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Japanese" lang="ja" hreflang="ja" class="interlanguage-link-target">日本語</A></LI><LI class="interlanguage-link interwiki-no"><A href="https://no.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Norwegian" lang="no" hreflang="no" class="interlanguage-link-target">Norsk</A></LI><LI class="interlanguage-link interwiki-pl"><A href="https://pl.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Polish" lang="pl" hreflang="pl" class="interlanguage-link-target">Polski</A></LI><LI class="interlanguage-link interwiki-pt"><A href="https://pt.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Portuguese" lang="pt" hreflang="pt" class="interlanguage-link-target">Português</A></LI><LI class="interlanguage-link interwiki-ro"><A href="https://ro.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Romanian" lang="ro" hreflang="ro" class="interlanguage-link-target">Română</A></LI><LI class="interlanguage-link interwiki-ru"><A href="https://ru.wikipedia.org/wiki/%D0%97%D0%B0%D1%89%D0%B8%D1%82%D0%BD%D0%B8%D0%BA_Windows" title="Защитник Windows – Russian" lang="ru" hreflang="ru" class="interlanguage-link-target">Русский</A></LI><LI class="interlanguage-link interwiki-si"><A href="https://si.wikipedia.org/wiki/%E0%B7%80%E0%B7%92%E0%B6%B1%E0%B7%8A%E0%B6%A9%E0%B7%9D%E0%B7%83%E0%B7%8A_%E0%B6%A9%E0%B7%92%E0%B7%86%E0%B7%99%E0%B6%B1%E0%B7%8A%E0%B6%A9%E0%B6%BB%E0%B7%8A" title="වින්ඩෝස් ඩිෆෙන්ඩර් – Sinhala" lang="si" hreflang="si" class="interlanguage-link-target">සිංහල</A></LI><LI class="interlanguage-link interwiki-simple"><A href="https://simple.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Simple English" lang="simple" hreflang="simple" class="interlanguage-link-target">Simple English</A></LI><LI class="interlanguage-link interwiki-fi"><A href="https://fi.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Finnish" lang="fi" hreflang="fi" class="interlanguage-link-target">Suomi</A></LI><LI class="interlanguage-link interwiki-sv"><A href="https://sv.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Swedish" lang="sv" hreflang="sv" class="interlanguage-link-target">Svenska</A></LI><LI class="interlanguage-link interwiki-tl"><A href="https://tl.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Tagalog" lang="tl" hreflang="tl" class="interlanguage-link-target">Tagalog</A></LI><LI class="interlanguage-link interwiki-ta"><A href="https://ta.wikipedia.org/wiki/%E0%AE%B5%E0%AE%BF%E0%AE%A9%E0%AF%8D%E0%AE%9F%E0%AF%8B%E0%AE%B8%E0%AF%8D_%E0%AE%9F%E0%AE%BF%E0%AE%83%E0%AE%AA%E0%AF%86%E0%AE%A9%E0%AF%8D%E0%AE%9F%E0%AE%B0%E0%AF%8D" title="வின்டோஸ் டிஃபென்டர் – Tamil" lang="ta" hreflang="ta" class="interlanguage-link-target">தமிழ்</A></LI><LI class="interlanguage-link interwiki-th"><A href="https://th.wikipedia.org/wiki/%E0%B8%A7%E0%B8%B4%E0%B8%99%E0%B9%82%E0%B8%94%E0%B8%A7%E0%B8%AA%E0%B9%8C%E0%B8%94%E0%B8%B5%E0%B9%80%E0%B8%9F%E0%B8%99%E0%B9%80%E0%B8%94%E0%B8%AD%E0%B8%A3%E0%B9%8C" title="วินโดวส์ดีเฟนเดอร์ – Thai" lang="th" hreflang="th" class="interlanguage-link-target">ไทย</A></LI><LI class="interlanguage-link interwiki-tr"><A href="https://tr.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Turkish" lang="tr" hreflang="tr" class="interlanguage-link-target">Türkçe</A></LI><LI class="interlanguage-link interwiki-uk"><A href="https://uk.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Ukrainian" lang="uk" hreflang="uk" class="interlanguage-link-target">Українська</A></LI><LI class="interlanguage-link interwiki-vi"><A href="https://vi.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Vietnamese" lang="vi" hreflang="vi" class="interlanguage-link-target">Tiếng Việt</A></LI><LI class="interlanguage-link interwiki-zh"><A href="https://zh.wikipedia.org/wiki/Windows_Defender" title="Windows Defender – Chinese" lang="zh" hreflang="zh" class="interlanguage-link-target">中文</A></LI>				</UL>
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question_text: what is windows defender and what does it do