Summary
This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker logs on to an affected system and runs a specially crafted application.To learn more about the vulnerability, see Microsoft Security Bulletin MS16-008.
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Important
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All future security and non-security updates for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 require update 2919355 to be installed. We recommend that you install update 2919355 on your Windows RT 8.1-based, Windows 8.1-based, or Windows Server 2012 R2-based computer so that you receive future updates.
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If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.
Additional information about this security update
The following articles contain additional information about this security update as it relates to individual product versions. The articles may contain known issue information.
How to obtain and install the update
Method 1: Windows Update
This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, see Get security updates automatically.Note For Windows RT and Windows RT 8.1, this update is available through Windows Update only.
You can obtain the stand-alone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.Click the download link in Microsoft Security Bulletin MS16-008 that corresponds to the version of Windows that you are running.
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Windows Vista (all editions)Reference TableThe following table contains the security update information for this software.
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Security update file names |
For all supported 32-bit editions of Windows Vista:Windows6.0-KB3121212-x86.msu |
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For all supported x64-based editions of Windows Vista:Windows6.0-KB3121212-x64.msu |
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Installation switches |
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Restart requirement |
A system restart is required after you apply this security update. |
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Removal information |
WUSA.exe does not support uninstall of updates. To uninstall an update installed by WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates, and select from the list of updates. |
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File information |
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Registry key verification |
Note A registry key does not exist to validate the presence of this update. |
Windows Server 2008 (all editions)Reference TableThe following table contains the security update information for this software.
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Security update file names |
For all supported 32-bit editions of Windows Server 2008:Windows6.0-KB3121212-x86.msu |
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For all supported x64-based editions of Windows Server 2008:Windows6.0-KB3121212-x64.msu |
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For all supported Itanium-based editions of Windows Server 2008:Windows6.0-KB3121212-ia64.msu |
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Installation switches |
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Restart requirement |
A system restart is required after you apply this security update. |
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Removal information |
WUSA.exe does not support uninstall of updates. To uninstall an update installed by WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates, and select from the list of updates. |
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File information |
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Registry key verification |
Note A registry key does not exist to validate the presence of this update. |
Windows 7 (all editions)Reference TableThe following table contains the security update information for this software.
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Security update file name |
For all supported 32-bit editions of Windows 7:Windows6.1-KB3121212-x86.msu |
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For all supported x64-based editions of Windows 7:Windows6.1-KB3121212-x64.msu |
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Installation switches |
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Restart requirement |
A system restart is required after you apply this security update. |
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Removal information |
To uninstall an update installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, and then under Windows Update, click View installed updates, and select from the list of updates. |
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File information |
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Registry key verification |
Note A registry key does not exist to validate the presence of this update. |
Windows Server 2008 R2 (all editions)Reference TableThe following table contains the security update information for this software.
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Security update file name |
For all supported x64-based editions of Windows Server 2008 R2:Windows6.1-KB3121212-x64.msu |
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For all supported Itanium-based editions of Windows Server 2008 R2:Windows6.1-KB3121212-ia64.msu |
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Installation switches |
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Restart requirement |
A system restart is required after you apply this security update. |
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Removal information |
To uninstall an update installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, and then under Windows Update, click View installed updates, and select from the list of updates. |
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File information |
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Registry key verification |
Note A registry key does not exist to validate the presence of this update. |
Windows 8 and Windows 8.1 (all editions)Reference TableThe following table contains the security update information for this software.
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Security update file name |
For all supported 32-bit editions of Windows 8:Windows8-RT-KB3121212-x86.msu |
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For all supported x64-based editions of Windows 8:Windows8-RT-KB3121212-x64.msu |
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For all supported 32-bit editions of Windows 8.1:Windows8.1-KB3121212-x86.msu |
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For all supported x64-based editions of Windows 8.1:Windows8.1-KB3121212-x64.msu |
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Installation switches |
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Restart requirement |
A system restart is required after you apply this security update. |
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Removal information |
To uninstall an update installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, click Windows Update, and then under See also, click Installed updates and select from the list of updates. |
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File information |
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Registry key verification |
Note A registry key does not exist to validate the presence of this update. |
Windows Server 2012 and Windows Server 2012 R2 (all editions)Reference TableThe following table contains the security update information for this software.
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Security update file name |
For all supported editions of Windows Server 2012:Windows8-RT-KB3121212-x64.msu |
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For all supported editions of Windows Server 2012 R2:Windows8.1-KB3121212-x64.msu |
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Installation switches |
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Restart requirement |
A system restart is required after you apply this security update. |
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Removal information |
To uninstall an update installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, click Windows Update, and then under See also, click Installed updates and select from the list of updates. |
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File information |
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Registry key verification |
Note A registry key does not exist to validate the presence of this update. |
Windows RT and Windows RT 8.1 (all editions)Reference TableThe following table contains the security update information for this software.
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Deployment |
These updates are available via Windows Update only. |
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Restart Requirement |
Yes, you must restart your system after you apply this security update. |
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Removal Information |
Click Control Panel, click System and Security, click Windows Update, and then under See also, click Installed updates and select from the list of updates. |
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File Information |
Windows 10 (all editions)Reference TableThe following table contains the security update information for this software.
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Security update file name |
For all supported 32-bit editions of Windows 10:Windows10.0-KB3124266-x86.msu |
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For all supported x64-based editions of Windows 10:Windows10.0-KB3124266-x64.msu |
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For all supported 32-bit editions of Windows 10 Version 1511:Windows10.0-KB3124263-x86.msu |
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For all supported x64-based editions of Windows 10 Version 1511:Windows10.0-KB3124263-x64.msu |
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Installation switches |
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Restart requirement |
A system restart is required after you apply this security update. |
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Removal information |
To uninstall an update installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, click Windows Update, and then under See also, click Installed updates and select from the list of updates. |
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File information |
See Microsoft Knowledge Base Article 3124266See Microsoft Knowledge Base Article 3124263 |
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Registry key verification |
Note A registry key does not exist to validate the presence of this update. |
Help for installing updates: Support for Microsoft UpdateSecurity solutions for IT professionals: TechNet Security Troubleshooting and SupportHelp for protecting your Windows-based computer from viruses and malware: Virus Solution and Security CenterLocal support according to your country: International Support
