Win32k.sys update in Windows: October 2015

Applies To
Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows 8.1 Enterprise Windows 8.1 Pro Windows 8.1 Windows RT 8.1 Windows Server 2008 R2 Service Pack 1 Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Standard Windows Server 2008 R2 Foundation Windows Server 2008 R2 for Itanium-Based Systems Windows 7 Service Pack 1 Windows 7 Ultimate Windows 7 Enterprise Windows 7 Professional Windows 7 Home Premium Windows 7 Home Basic Windows 7 Starter

This article describes an update that fixes some issues in Windows 8.1,Windows Server 2012 R2, Windows 7 Service Pack 1 (SP1), or Windows Server 2008 R2 SP1. Before you install this update, check out the Prerequisites section.

Issues fixed in this update

  • Removes the Touch Hardware Quality Assurance (THQA) certification verification check in the Win32k.sys driver in Windows 8.1.
  • Font files remain open by the system, and can't be deleted when they're used in a call to CreateScalableFontResource in Windows Server 2012 R2.
  • Fixes a crash in Win32k.sys in Windows 7 SP1 or Windows Server 2008 R2 SP1.

How to get this update

Important 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.

Method 1: Windows Update

This update is provided as an Optional update on Windows Update. For more information on how to run Windows Update, see How to get an update through Windows Update.

Method 2: Microsoft Download Center

The following files are available for download from the Microsoft Download Center:

Operating system Update
All supported x86-based versions of Windows 8.1 Download Download the package now.
All supported x64-based versions of Windows 8.1 Download Download the package now.
All supported x64-based versions of Windows Server 2012 R2 Download Download the package now.
All supported x86-based versions of Windows 7 Download Download the package now.
All supported x64-based versions of Windows 7 Download Download the package now.
All supported x64-based versions of Windows Server 2008 R2 Download Download the package now.
All supported IA-64-based versions of Windows Server 2008 R2 Download Download the package now.

Note The update for Windows RT 8.1 can be downloaded only from Windows Update.

 For more information about how to download Microsoft support files, select the following article number to view the article in the Microsoft Knowledge Base:

119591 How to get Microsoft support files from online services Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Update detail information

Prerequisites

To apply this update, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed in Windows 8.1 or Windows Server 2012 R2. Or, install Service Pack 1 for Windows 7 or Windows Server 2008 R2.

Registry information

To apply this update, you don't have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this update.

Update replacement information

This update doesn't replace a previously released update.

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References

See the terminology that Microsoft uses to describe software updates.

File Information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). Be aware that dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time bias. The dates and times may also change when you perform certain operations on the files.

Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2

Notes

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version Product Milestone Service branch
    6.3.960 0.18 xxx Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 RTM GDR
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

Windows RT 8.1

File name File version File size Date Time Platform
Win32k.ptxml Not applicable 4,213 21-Aug-2013 23:33 Not applicable
Win32k.sys 6.3.9600.18056 3,092,992 15-Sep-2015 14:29 Not applicable

x86 Windows 8.1

File name File version File size Date Time Platform
Win32k.ptxml Not applicable 4,213 21-Aug-2013 23:39 Not applicable
Win32k.sys 6.3.9600.18056 3,523,584 15-Sep-2015 14:25 x86

x64 Windows 8.1 and Windows Server 2012 R2

File name File version File size Date Time Platform
Win32k.ptxml Not applicable 4,213 22-Aug-2013 06:44 Not applicable
Win32k.sys 6.3.9600.18056 4,176,384 15-Sep-2015 14:29 x64
Wow64_win32k.ptxml Not applicable 4,213 21-Aug-2013 23:39 Not applicable

      

Windows 7 and Windows Server 2008 R2

Notes

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version Product Milestone Service branch
    6.1.760 1.19 xxx Windows 7 or Windows Server 2008 R2 SP1 GDR
    6.1.760 1.23 xxx Windows 7 or Windows Server 2008 R2 SP1 LDR
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

x64 Windows 7 and Windows Server 2008 R2

File name File version File size Date Time Platform
Win32k.sys 6.1.7601.19006 3,210,240 14-Sep-2015 19:45 x64
Win32k.sys 6.1.7601.23209 3,213,312 14-Sep-2015 21:49 x64

ia64 Windows Server 2008 R2

File name File version File size Date Time Platform
Win32k.sys 6.1.7601.19006 7,503,360 14-Sep-2015 19:46 IA-64
Win32k.sys 6.1.7601.23209 7,511,552 15-Sep-2015 13:35 IA-64

x86 Windows 7

File name File version File size Date Time Platform
Win32k.sys 6.1.7601.19006 2,385,920 14-Sep-2015 19:53 x86
Win32k.sys 6.1.7601.23209 2,394,624 14-Sep-2015 21:48 x86

      

Additional file information

Windows RT 8.1

File property Value
File name Arm_b838b86958a38cec74944f578eb44b9c_31bf3856ad364e35_6.3.9600.18056_none_067f99bf1db66c9e.manifest
File version Not applicable
File size 694
Date (UTC) 15-Sep-2015
Time (UTC) 21:54
Platform Not applicable
File name Arm_microsoft-windows-win32k_31bf3856ad364e35_6.3.9600.18056_none_4db7edafb603986c.manifest
File version Not applicable
File size 125,375
Date (UTC) 15-Sep-2015
Time (UTC) 14:55
Platform Not applicable
File name Update.mum
File version Not applicable
File size 1,804
Date (UTC) 15-Sep-2015
Time (UTC) 21:54
Platform Not applicable

x86 Windows 8.1

File property Value
File name Update.mum
File version Not applicable
File size 1,804
Date (UTC) 15-Sep-2015
Time (UTC) 21:54
Platform Not applicable
File name X86_568ef6e24fb6449d536bf068a35f9ab6_31bf3856ad364e35_6.3.9600.18056_none_bedb9260d1b597c8.manifest
File version Not applicable
File size 694
Date (UTC) 15-Sep-2015
Time (UTC) 21:54
Platform Not applicable
File name X86_microsoft-windows-win32k_31bf3856ad364e35_6.3.9600.18056_none_4db57b57b60679a6.manifest
File version Not applicable
File size 125,375
Date (UTC) 15-Sep-2015
Time (UTC) 15:12
Platform Not applicable

x64 Windows 7 and Windows Server 2008 R2

File property Value
File name Amd64_4b449e11bcc2931092a6646372538b54_31bf3856ad364e35_6.1.7601.19006_none_27656bb4e8303b1c.manifest
File version Not applicable
File size 1,038
Date (UTC) 15-Sep-2015
Time (UTC) 17:03
Platform Not applicable
File name Amd64_4ccabaa5177d6de9a091e0dbe88b3877_31bf3856ad364e35_6.1.7601.23209_none_264faf421b1f5915.manifest
File version Not applicable
File size 1,038
Date (UTC) 15-Sep-2015
Time (UTC) 17:03
Platform Not applicable
File name Amd64_81a34052ae4cd18906563bc6239be872_31bf3856ad364e35_6.1.7601.19006_none_c80b5d03f6a7bc48.manifest
File version Not applicable
File size 698
Date (UTC) 15-Sep-2015
Time (UTC) 17:03
Platform Not applicable
File name Amd64_9e7e7a75e993f572241705683ba8ae49_31bf3856ad364e35_6.1.7601.19006_none_6fa4b2d2d725fdcc.manifest
File version Not applicable
File size 698
Date (UTC) 15-Sep-2015
Time (UTC) 17:03
Platform Not applicable
File name Amd64_b54adc226ac24198a0245d45c3ff7d30_31bf3856ad364e35_6.1.7601.23209_none_e0e6d5ce23ea1c80.manifest
File version Not applicable
File size 698
Date (UTC) 15-Sep-2015
Time (UTC) 17:03
Platform Not applicable
File name Amd64_da5b1e990fbf4f6e8208c289f44c05c2_31bf3856ad364e35_6.1.7601.23209_none_12d33b3e324dc20c.manifest
File version Not applicable
File size 698
Date (UTC) 15-Sep-2015
Time (UTC) 17:03
Platform Not applicable
File name Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.19006_none_1726189bb11cac3d.manifest
File version Not applicable
File size 42,149
Date (UTC) 14-Sep-2015
Time (UTC) 20:46
Platform Not applicable
File name Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.23209_none_17b2b82aca379533.manifest
File version Not applicable
File size 42,149
Date (UTC) 14-Sep-2015
Time (UTC) 22:45
Platform Not applicable
File name Update.mum
File version Not applicable
File size 2,774
Date (UTC) 15-Sep-2015
Time (UTC) 17:03
Platform Not applicable
File name Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.19006_none_217ac2ede57d6e38.manifest
File version Not applicable
File size 4,178
Date (UTC) 14-Sep-2015
Time (UTC) 20:42
Platform Not applicable
File name Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.23209_none_2207627cfe98572e.manifest
File version Not applicable
File size 4,178
Date (UTC) 14-Sep-2015
Time (UTC) 22:25
Platform Not applicable

ia64 Windows Server 2008 R2

File property Value
File name Ia64_10a15f5c65602cf9358911ec453969fa_31bf3856ad364e35_6.1.7601.23209_none_7a54561cfba8cf41.manifest
File version Not applicable
File size 1,036
Date (UTC) 15-Sep-2015
Time (UTC) 17:03
Platform Not applicable
File name Ia64_ff9dcbb7a72c3ec553628a9637b93f70_31bf3856ad364e35_6.1.7601.19006_none_fc8ecb5c09087431.manifest
File version Not applicable
File size 1,036
Date (UTC) 15-Sep-2015
Time (UTC) 17:03
Platform Not applicable
File name Ia64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.19006_none_bb09210df8bd4403.manifest
File version Not applicable
File size 42,147
Date (UTC) 14-Sep-2015
Time (UTC) 20:43
Platform Not applicable
File name Ia64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.23209_none_bb95c09d11d82cf9.manifest
File version Not applicable
File size 42,147
Date (UTC) 15-Sep-2015
Time (UTC) 14:16
Platform Not applicable
File name Update.mum
File version Not applicable
File size 1,447
Date (UTC) 15-Sep-2015
Time (UTC) 17:03
Platform Not applicable
File name Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.19006_none_217ac2ede57d6e38.manifest
File version Not applicable
File size 4,178
Date (UTC) 14-Sep-2015
Time (UTC) 20:42
Platform Not applicable
File name Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.23209_none_2207627cfe98572e.manifest
File version Not applicable
File size 4,178
Date (UTC) 14-Sep-2015
Time (UTC) 22:25
Platform Not applicable

x86 Windows 7

File property Value
File name Update.mum
File version Not applicable
File size 2,138
Date (UTC) 15-Sep-2015
Time (UTC) 17:03
Platform Not applicable
File name X86_cd1beaaef3c02f13a461f4bfe9f43335_31bf3856ad364e35_6.1.7601.19006_none_2ad164d808672ea0.manifest
File version Not applicable
File size 694
Date (UTC) 15-Sep-2015
Time (UTC) 17:03
Platform Not applicable
File name X86_dee31cd14d898c78122a083f98fa08fa_31bf3856ad364e35_6.1.7601.23209_none_541e83c111a18027.manifest
File version Not applicable
File size 694
Date (UTC) 15-Sep-2015
Time (UTC) 17:03
Platform Not applicable
File name X86_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.19006_none_bb077d17f8bf3b07.manifest
File version Not applicable
File size 42,145
Date (UTC) 14-Sep-2015
Time (UTC) 21:00
Platform Not applicable
File name X86_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.23209_none_bb941ca711da23fd.manifest
File version Not applicable
File size 42,145
Date (UTC) 14-Sep-2015
Time (UTC) 22:44
Platform Not applicable

x64 Windows 8.1 and Windows Server 2012 R2

File property Value
File name Amd64_5dfd0acd8d392feb713530182c8479e6_31bf3856ad364e35_6.3.9600.18056_none_259a12f5ff1bdfa9.manifest
File version Not applicable
File size 698
Date (UTC) 15-Sep-2015
Time (UTC) 21:54
Platform Not applicable
File name Amd64_f84a61173daac194531014ec6f1d8264_31bf3856ad364e35_6.3.9600.18056_none_c90d9c29d91f979a.manifest
File version Not applicable
File size 698
Date (UTC) 15-Sep-2015
Time (UTC) 21:54
Platform Not applicable
File name Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.3.9600.18056_none_a9d416db6e63eadc.manifest
File version Not applicable
File size 125,379
Date (UTC) 15-Sep-2015
Time (UTC) 15:25
Platform Not applicable
File name Update.mum
File version Not applicable
File size 2,935
Date (UTC) 15-Sep-2015
Time (UTC) 21:54
Platform Not applicable
File name Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.3.9600.18056_none_b428c12da2c4acd7.manifest
File version Not applicable
File size 124,646
Date (UTC) 15-Sep-2015
Time (UTC) 15:11
Platform Not applicable