Summary

This security update resolves a vulnerability in Windows that could allow elevation of privilege if an attacker inserts a malicious USB device into a target system. An attacker could then write a malicious binary to disk and execute the code.

To learn more about the vulnerability, see Microsoft Security Bulletin MS15-085.

More Information

Important

  • All future security and nonsecurity 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.

  • 3071756 MS15-085: Description of the security update for Windows Mount Manager: August 11, 2015

  • 3081436 Cumulative Security Update for Windows 10: August 11, 2015

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 MS15-085 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-KB3071756-x86.msu


For all supported x64-based editions of Windows Vista:
Windows6.0-KB3071756-x64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

A system restart is required after you apply this security update.

Removal information

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

File information

See Microsoft Knowledge Base Article 3071756

Registry key verification

Note A registry key does not exist to validate the presence of this update.

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-KB3071756-x86.msu


For all supported x64-based editions of Windows Server 2008:
Windows6.0-KB3071756-x64.msu


For all supported Itanium-based editions of Windows Server 2008:
Windows6.0-KB3071756-ia64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

A system restart is required after you apply this security update.

Removal information

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

File information

See Microsoft Knowledge Base Article 3071756

Registry key verification

Note A registry key does not exist to validate the presence of this update.

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-KB3071756-x86.msu


For all supported x64-based editions of Windows 7:
Windows6.1-KB3071756-x64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

A system restart is required after you apply this security update.

Removal information

To uninstall an update that was 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.

File information

See Microsoft Knowledge Base Article 3071756

Registry key verification

Note A registry key does not exist to validate the presence of this update.

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-KB3071756-x64.msu


For all supported Itanium-based editions of Windows Server 2008 R2:
Windows6.1-KB3071756-ia64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

A system restart is required after you apply this security update.

Removal information

To uninstall an update that was 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.

File information

See Microsoft Knowledge Base Article 3071756

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 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:
Windows8-RT-KB3071756-x86.msu


For all supported x64-based editions of Windows 8:
Windows8-RT-KB3071756-x64.msu


For all supported 32-bit editions of Windows 8.1:
Windows8.1-KB3071756-x86.msu


For all supported x64-based editions of Windows 8.1:
Windows8.1-KB3071756-x64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

A system restart is required after you apply this security update.

Removal information

To uninstall an update that was 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.

File information

See Microsoft Knowledge Base Article 3071756

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 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-KB3071756-x64.msu


For all supported editions of Windows Server 2012 R2:
Windows8.1-KB3071756-x64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

A system restart is required after you apply this security update.

Removal information

To uninstall an update that was 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.

File information

See Microsoft Knowledge Base Article 3071756

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 Table

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

Deployment

These updates are available through Windows Update only.

Restart Requirement

A system restart is required after you apply this security update.

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.

File Information

See Microsoft Knowledge Base Article 3071756

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:
KB3081436-Win10-RTM-X86-TSL.msu


For all supported x64-based editions of Windows 10:
KB3081436-Win10-RTM-X64-TSL.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

A system restart is required after you apply this security update.

Removal information

To uninstall an update that was 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.

File information

See Microsoft Knowledge Base Article 3081436

Registry key verification

Note A registry key does not exist to validate the presence of this update.


File name

SHA1 hash

SHA256 hash

Windows6.0-KB3071756-ia64.msu

DEE4966E4005C4D33E4ACA66E9EAAA9530E18A40

A05BC84BD66A743EAC449485E5F99F5329A789C6AF346BE05D0E005DBD4B5010

Windows6.0-KB3071756-x64.msu

24AEEDD561CC2D72ED16D8B871435BC071C723D1

C52D5D1D989D14E7EDB3DA1CE7798D7382F087595CD2437A45E98E9D559A3AC7

Windows6.0-KB3071756-x86.msu

AC57540C110B73530C7E513F8973A2331B474323

F6276927E91F937E318FDF7303DB2B347C518CDE5D45A37B97F40A393AFD95E3

Windows6.0-KB9898989-ia64.msu

5AF643CD70AD37555CA2EE09EAB0122072A937FA

9F6B902CC9A30D5D9ABF236B479096F802FB40E553FB48B0C4B6EB8522549E73

Windows6.0-KB9898989-x64.msu

E9F066124E3408ED6B0CA9FA0830C8B33106D954

E06AD388617083F80C4A464E6EB7758F333850F00677595FC3C61F436A168D45

Windows6.0-KB9898989-x86.msu

1C1DDBCF346B61A3E338A2D6464947E32F7643B0

9F43B1B5820B8614446303869311635E94991CE1303CD90075587DD8A858A5F8

Windows6.1-KB3071756-ia64.msu

E13BECBD389B9F0DBB2BDBDDA9213A2830E48F6B

401D82AEB7767973AFEDD8128A32026D817E77BE1C80288E907C6F2CDBC86C8C

Windows6.1-KB3071756-x64.msu

B1AAB0EF3752C52636409B50EB7853F645859E78

3685E70B4716A3AF0A3DBF18B54F64F216295788C34F3FEA142982FAE09CDC00

Windows6.1-KB3071756-x86.msu

31BF25FD49F04F2397666A6FF45D5F676202EFC9

B61E184B29591B2DF11154112EFD430E2EE5496F2DA27F661882E9FBA988B5E3

Windows8.1-KB3071756-arm.msu

40DA197E2E4798D1C48DB4961066A9262447AE1A

462A3AAD9A6140464F5BD44DBC2695FF2CA72F8E4889CEA46FD977F570DFBE36

Windows8.1-KB3071756-x64.msu

481757325634850FEC6798A4A7DCF67139E72AAC

2A09F3CC4E9C6CF011882B05ABB05AE69203D10460D86933F17242C0F9F5D7ED

Windows8.1-KB3071756-x86.msu

C81D576B23663AF556E42292550FCFC2CB7F622B

848C8BAECE935713828D76F0DD0A5ADBCFFC62B48813E705F8814BF30232D118

Windows8-RT-KB3071756-arm.msu

E1AB13F514DF1497F389CCFE825177928A689503

6AF278B36A16BFF537E8BA2B95B0DAA495F9AF71EE6F93E91D345E7E804A28B2

Windows8-RT-KB3071756-x64.msu

261FEE52A8FB9966C6066DE1C4FA9BD01B0E56D3

D63EBD1F93EE8F81815FC7D1E9FCB37B8AEB9CA2EDD4CA90175FA317FDACA735

Windows8-RT-KB3071756-x86.msu

EE678704D85D6D27A03C1D75B61EDEED578DE432

6DD9E69660AA650CA135C5B399FC9A169DBEF8CF0C0B9A41A79DED63DF801E15


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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