Summary

This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker can access sensitive registry information.




To learn more about the vulnerability, see Microsoft Security Bulletin MS16-124.

More Information

Important

  • 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.

  • 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.

  • 3191256 MS16-124: Description of the security update for Windows registry: October 11, 2016

  • 3192392 October 2016 security only quality update for Windows 8.1, and Windows Server 2012 R2

  • 3185331 October 2016 security monthly quality rollup for Windows 8.1, and Windows Server 2012 R2

  • 3192393 October 2016 security only quality update for Windows Server 2012

  • 3185332 October 2016 security monthly quality rollup for Windows Server 2012

  • 3192391 October 2016 security only quality update for Windows 7 SP1 and Windows Server 2008 R2 SP1

  • 3185330 October 2016 security monthly quality rollup for Windows 7 SP1 and Windows Server 2008 R2 SP1

  • 3192440 Cumulative update for Windows 10: October 11, 2016

  • 3194798 Cumulative update for Windows 10 Version 1607 and Windows Server 2016: October 11, 2016

  • 3192441 Cumulative update for Windows 10 Version 1511: October 11, 2016

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 8.1, this update is available through Windows Update only.

Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

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 MS16-124 that corresponds to the version of Windows that you are running.

More Information



Windows Vista (all editions) Reference table

The following table contains the security update information for this software.

Security update file names

For all supported 32-bit editions of Windows Vista:
Windows6.0-KB3191256-x86.msu

For all supported x64-based editions of Windows Vista:
Windows6.0-KB3191256-x64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

You must restart the system after you apply this security update.

Removal information

WUSA.exe does not support uninstalling updates. To uninstall an update that is installed by WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates, and then select from the list of updates.

File information

See Microsoft Knowledge Base Article 3191256

Registry key verification

Note This update does not add a registry key to validate its installation.



Windows Server 2008 (all editions) Reference table

The following table contains the security update information for this software.

Security update file names

For all supported 32-bit editions of Windows Server 2008:
Windows6.0-KB3191256-x86.msu

For all supported x64-based editions of Windows Server 2008:
Windows6.0-KB3191256-x64.msu

For all supported Itanium-based editions of Windows Server 2008:
Windows6.0-KB3191256-ia64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

You must restart the system after you apply this security update.

Removal information

WUSA.exe does not support uninstalling updates. To uninstall an update that is installed by WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates, and then select from the list of updates.

File information

See Microsoft Knowledge Base Article 3191256

Registry key verification

Note This update does not add a registry key to validate its installation.



Windows 7 (all editions) Reference table

The following table contains the security update information for this software.

Security update file name

For all supported 32-bit editions of Windows 7:
Windows6.1-KB3192391-x86.msu
Security Only

For all supported 32-bit editions of Windows 7
Windows6.1-KB3185330-x86.msu
Monthly Rollup

For all supported x64-based editions of Windows 7:
Windows6.1-KB3192391-x64.msu
Security Only

For all supported x64-based editions of Windows 7:
Windows6.1-KB3185330-x64.msu
Monthly Rollup

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

You must restart the system after you apply this security update.

Removal information

To uninstall an update that is installed by WUSA, use the /Uninstall setup switch or click Control Panel, and then click System and Security. Under Windows Update, click View installed updates, and then select from the list of updates.

File information

See Microsoft Knowledge Base Article 3192391
See Microsoft Knowledge Base Article 3185330

Registry key verification

Note This update does not add a registry key to validate its installation.



Windows Server 2008 R2 (all editions) Reference table

The following table contains the security update information for this software.

Security update file name

For all supported x64-based editions of Windows Server 2008 R2:
Windows6.1-KB3192391-x64.msu
Security only

For all supported x64-based editions of Windows Server 2008 R2:
Windows6.1-KB3185330-x64.msu
Monthly rollup

For all supported Itanium-based editions of Windows Server 2008 R2:
Windows6.1-KB3192391-ia64.msu
Security only

For all supported Itanium-based editions of Windows Server 2008 R2:
Windows6.1-KB3185330-ia64.msu
Monthly rollup

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

You must restart the system after you apply this security update.

Removal information

To uninstall an update that is installed by WUSA, use the /Uninstall setup switch or click Control Panel, and then click System and Security. Under Windows Update, click View installed updates, and then select from the list of updates.

File information

See Microsoft Knowledge Base Article 3192391
See Microsoft Knowledge Base Article 3185330

Registry key verification

Note This update does not add a registry key to validate its installation.



Windows 8.1 (all editions) Reference table

The following table contains the security update information for this software.

Security update file name

For all supported 32-bit editions of Windows 8.1:
Windows8.1-KB3192392-x86.msu
Security only

For all supported 32-bit editions of Windows 8.1:
Windows8.1-KB3185331-x86.msu
Monthly rollup

For all supported x64-based editions of Windows 8.1:
Windows8.1-KB3192392-x64.msu
Security only

For all supported x64-based editions of Windows 8.1:
Windows8.1-KB3185331-x64.msu
Monthly rollup

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

You must restart the system after you apply this security update.

Removal information

To uninstall an update that is installed by WUSA, use the /Uninstall setup switch or Click Control Panel, click System and Security, and then click Windows Update. Under See also, click Installed updates, and then select from the list of updates.

File information

See Microsoft Knowledge Base Article 3192392
See Microsoft Knowledge Base Article 3185331

Registry key verification

Note This update does not add a registry key to validate its installation.



Windows Server 2012 and Windows Server 2012 R2 (all editions) Reference table

The following table contains the security update information for this software.

Security update file name

For all supported editions of Windows Server 2012:
Windows8-RT-KB3192393-x64.msu
Security only

For all supported editions of Windows Server 2012:
Windows8-RT-KB3185332-x64.msu
Monthly rollup

For all supported editions of Windows Server 2012 R2:
Windows8.1-KB3192392-x64.msu
Security only

For all supported editions of Windows Server 2012 R2:
Windows8.1-KB3185331-x64.msu
Monthly rollup

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

You must restart the system after you apply this security update.

Removal information

To uninstall an update that is installed by WUSA, use the /Uninstall setup switch or Click Control Panel, click System and Security, and then click Windows Update. Under See also, click Installed updates, and then select from the list of updates.

File information

See Microsoft Knowledge Base Article 3192393
See Microsoft Knowledge Base Article 3185332

Registry key verification

Note This update does not add a registry key to validate its installation.



Windows RT 8.1 (all editions) Reference table

The following table contains the security update information for this software.

Deployment

The 3192392 Security Only update is available via Windows Update only.
The 3185331 Monthly Only update is available via Windows Update only.

Restart Requirement

You must restart the system after you apply this security update.

Removal Information

Click Control Panel, click System and Security, and then click Windows Update. Under See also, click Installed updates, and then select from the list of updates.

File Information

See Microsoft Knowledge Base Article 3192393
See Microsoft Knowledge Base Article 3185332



Windows 10 (all editions) Reference table

The following table contains the security update information for this software.

Security update file name

For all supported 32-bit editions of Windows 10:
Windows10.0-KB3192440-x86.msu

For all supported x64-based editions of Windows 10:
Windows10.0-KB3192440-x64.msu

For all supported 32-bit editions of Windows 10 Version 1511:
Windows10.0-KB3192441-x86.msu

For all supported x64-based editions of Windows 10 Version 1511:
Windows10.0-KB3192441-x64.msu

For all supported 32-bit editions of Windows 10 Version 1607:
Windows10.0-KB3194798-x86.msu

For all supported x64-based editions of Windows 10 Version 1607:
Windows10.0-KB3194798-x64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

You must restart the system after you apply this security update.

Removal information

To uninstall an update that is installed by WUSA, use the /Uninstall setup switch or Click Control Panel, click System and Security, and then click Windows Update. Under See also, click Installed updates, and then select from the list of updates.

File information

See Microsoft Knowledge Base Article 3192440
See Microsoft Knowledge Base Article 3192441
See Microsoft Knowledge Base Article 3194798

Registry key verification

Note This update does not add a registry key to validate its installation.


Help for installing updates: Support for Microsoft Update

Security solutions for IT professionals: TechNet Security Troubleshooting and Support

Help for protecting your Windows-based computer from viruses and malware: Virus Solution and Security Center

Local support according to your country: International Support

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