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Not sure if this is the right fix? We've added this issue to our memory dump diagnostic which can confirm.

Symptoms

On a computer that is running windows Server 2008 R2 or windows Server 2012, you receive a Stop error message that resembles the following, and the computer restarts automatically:

STOP: 0x00000050 (Parameter1, Parameter2, Parameter3, Parameter4)

Notes

  • This Stop error describes a PAGE_FAULT_IN_NONPAGED_AREA issue.

  • The parameters in this Stop error message vary, depending on the configuration of the computer.

  • Not all "Stop 0x00000050" errors are caused by this issue.

Cause

The issue occurs because the allocation check logic fails when Win32k.sys receives a call to delete the surface. When this failure occurs, Win32k.sys tries to deallocate memory that was not allocated.

Resolution

This hotfix is also available at Microsoft Update Catalog.

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running Windows Server 2008 R2, Windows Server 2008 R2 Service Pack 1 (SP1) or windows Server 2012.

For more information about how to obtain a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To apply this hotfix, you do not have to change the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Server 2008 R2 file information notesImportant Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • 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
    0.17xxx

    Windows Server 2008 R2

    RTM

    GDR

    6.1.760
    0.21xxx

    Windows Server 2008 R2

    RTM

    LDR

    6.1.760
    1.17xxx

    Windows Server 2008 R2

    SP1

    GDR

    6.1.760
    1.22xxx

    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) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2" section. MANIFEST files and the associated security catalog (.cat) files, are extremely 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.

For all supported x64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Win32k.sys

6.1.7600.17162

3,147,264

09-Nov-2012

03:19

x64

Win32k.sys

6.1.7600.21365

3,151,872

09-Nov-2012

03:26

x64

Win32k.sys

6.1.7601.17994

3,150,336

09-Nov-2012

03:21

x64

Win32k.sys

6.1.7601.22156

3,152,384

09-Nov-2012

03:13

x64

For all supported IA-64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Win32k.sys

6.1.7600.17162

7,451,648

09-Nov-2012

02:41

IA-64

Win32k.sys

6.1.7600.21365

7,456,768

09-Nov-2012

02:54

IA-64

Win32k.sys

6.1.7601.17994

7,446,016

09-Nov-2012

02:40

IA-64

Win32k.sys

6.1.7601.22156

7,451,648

09-Nov-2012

02:50

IA-64

Windows Server 2012 file information notesImportant Windows 8 and Windows Server 2012 hotfixes are included in the same packages. However, only "Windows 8" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • 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

    6.2.920 0.16 xxx

    Windows Server 2012

    RTM

    GDR

    6.2.920 0.20 xxx

    Windows Server 2012

    RTM

    LDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2012" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely 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.

For all supported x64-based versions of Windows Server 2012

File name

File version

File size

Date

Time

Platform

Win32k.ptxml

Not Applicable

4,172

25-Jul-2012

20:29

Not Applicable

Win32k.sys

6.2.9200.20776

4,038,144

17-Jul-2013

08:40

x64


Status

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

More Information

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information for Windows Server 2008 R2

Additional files for all supported x64-based versions of Windows Server 2008 R2

File name

Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.17162_none_14faefc7b42a6bd3.manifest

File version

Not applicable

File size

42,090

Date (UTC)

09-Nov-2012

Time (UTC)

06:22

Platform

Not applicable

File name

Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.21365_none_15878f56cd4554c9.manifest

File version

Not applicable

File size

42,090

Date (UTC)

09-Nov-2012

Time (UTC)

06:18

Platform

Not applicable

File name

Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.17994_none_16c30761b1672825.manifest

File version

Not applicable

File size

42,090

Date (UTC)

09-Nov-2012

Time (UTC)

06:20

Platform

Not applicable

File name

Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.22156_none_1779bc92ca62be1b.manifest

File version

Not applicable

File size

42,090

Date (UTC)

09-Nov-2012

Time (UTC)

06:43

Platform

Not applicable

File name

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.17162_none_1f4f9a19e88b2dce.manifest

File version

Not applicable

File size

4,178

Date (UTC)

09-Nov-2012

Time (UTC)

05:06

Platform

Not applicable

File name

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.21365_none_1fdc39a901a616c4.manifest

File version

Not applicable

File size

4,178

Date (UTC)

09-Nov-2012

Time (UTC)

05:13

Platform

Not applicable

File name

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.17994_none_2117b1b3e5c7ea20.manifest

File version

Not applicable

File size

4,178

Date (UTC)

09-Nov-2012

Time (UTC)

05:13

Platform

Not applicable

File name

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.22156_none_21ce66e4fec38016.manifest

File version

Not applicable

File size

4,178

Date (UTC)

09-Nov-2012

Time (UTC)

05:31

Platform

Not applicable

Additional files for all supported IA-64-based versions of Windows Server 2008 R2

File name

Ia64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.17162_none_b8ddf839fbcb0399.manifest

File version

Not applicable

File size

42,088

Date (UTC)

09-Nov-2012

Time (UTC)

06:11

Platform

Not applicable

File name

Ia64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.21365_none_b96a97c914e5ec8f.manifest

File version

Not applicable

File size

42,088

Date (UTC)

09-Nov-2012

Time (UTC)

06:23

Platform

Not applicable

File name

Ia64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.17994_none_baa60fd3f907bfeb.manifest

File version

Not applicable

File size

42,088

Date (UTC)

09-Nov-2012

Time (UTC)

06:01

Platform

Not applicable

File name

Ia64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.22156_none_bb5cc505120355e1.manifest

File version

Not applicable

File size

42,088

Date (UTC)

09-Nov-2012

Time (UTC)

06:37

Platform

Not applicable

File name

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.17162_none_1f4f9a19e88b2dce.manifest

File version

Not applicable

File size

4,178

Date (UTC)

09-Nov-2012

Time (UTC)

05:06

Platform

Not applicable

File name

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.21365_none_1fdc39a901a616c4.manifest

File version

Not applicable

File size

4,178

Date (UTC)

09-Nov-2012

Time (UTC)

05:13

Platform

Not applicable

File name

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.17994_none_2117b1b3e5c7ea20.manifest

File version

Not applicable

File size

4,178

Date (UTC)

09-Nov-2012

Time (UTC)

05:13

Platform

Not applicable

File name

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.22156_none_21ce66e4fec38016.manifest

File version

Not applicable

File size

4,178

Date (UTC)

09-Nov-2012

Time (UTC)

05:31

Platform

Not applicable

Additional file information for Windows Server 2012

Additional files for all supported x64-based versions of Windows Server 2012

File name

Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.2.9200.20776_none_1253941c3d5eadb3.manifest

File version

Not Applicable

File size

104,793

Date (UTC)

17-Jul-2013

Time (UTC)

11:29

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

2,704

Date (UTC)

18-Jul-2013

Time (UTC)

11:29

Platform

Not Applicable

File name

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.2.9200.20776_none_1ca83e6e71bf6fae.manifest

File version

Not Applicable

File size

104,060

Date (UTC)

17-Jul-2013

Time (UTC)

05:01

Platform

Not Applicable


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