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

Symptoms

When Windows tries to back up registry hives on a computer that is running Windows Vista Service Pack 2 (SP2) or Windows Server 2008 SP2, the computer crashes. Additionally, you receive the following Stop error message:

Stop 0x00000050 (parameter1, 00000000, parameter3, 00000000)
PAGE_FAULT_IN_NONPAGED_AREA

Note The parameters in the error message vary, depending on the configuration of the computer.

Cause

This issue occurs because the registry subsystem unmaps a view that is being used when the registry is large and when memory contention occurs.

Note Windows backs up registry hives automatically.

Resolution

Hotfix information

Important This hotfix has been re-released to address an issue in which the digital signature on files produced and signed by Microsoft will expire prematurely, as described in Microsoft Security Advisory 2749655.

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 Vista Service Pack 2 (SP2) or Windows Server 2008 SP2. For more information about how to obtain a Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:

935791 How to obtain the latest Windows Vista service pack

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

968849 How to obtain the latest service pack for Windows Server 2008

Registry information

To apply this hotfix, you do not have to make any changes to 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.

File information

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 Vista and Windows Server 2008 file information notes

Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" 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 Vista" 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, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.0.600
    2.
    22xxx

    Windows Vista and Windows Server 2008

    SP2

    LDR

  • Service Pack 1 is integrated into the release version of Windows Server 2008. Therefore, RTM milestone files apply only to Windows Vista. RTM milestone files have a 6.0.0000.xxxxxx version number.

  • 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 2008 and for Windows Vista" section. MUM files and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows Server 2008 and of Windows Vista

File name

File version

File size

Date

Time

Platform

Ntkrnlpa.exe

6.0.6002.22890

3,604,352

07-Jul-2012

05:03

Not Applicable

Ntoskrnl.exe

6.0.6002.22890

3,553,152

07-Jul-2012

05:03

Not Applicable

For all supported x64-based versions of Windows Server 2008 and of Windows Vista

File name

File version

File size

Date

Time

Platform

Ntoskrnl.exe

6.0.6002.22890

4,686,208

07-Jul-2012

04:47

x64

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

File name

File version

File size

Date

Time

Platform

Ntoskrnl.exe

6.0.6002.22890

9,472,384

07-Jul-2012

04:32

IA-64

Status

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

More Information

This hotfix includes the problem that is described in KB 2795491. Therefore, you should refer to KB 2795491 before you apply this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge base:

2795491 "0x00000050" Stop error after a registry hive that contains many registry entries and subkeys is loaded in Windows Server 2008 SP2 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

Additional file information for Windows Vista and for Windows Server 2008

Additional files for all supported x86-based versions of Windows Vista and of Windows Server 2008

File name

Update.mum

File version

Not Applicable

File size

2,615

Date (UTC)

17-Sep-2012

Time (UTC)

07:50

Platform

Not Applicable

File name

X86_3f54f29f4018c5215ea083347a86c0fa_31bf3856ad364e35_6.0.6002.22938_none_58a7148a3e99f8b3.manifest

File version

Not Applicable

File size

717

Date (UTC)

17-Sep-2012

Time (UTC)

07:50

Platform

Not Applicable

File name

X86_9005aafc9e5eb894b44dff17f0bda0b9_31bf3856ad364e35_6.0.6002.22890_none_3d34d592e3b981a4.manifest

File version

Not Applicable

File size

697

Date (UTC)

17-Sep-2012

Time (UTC)

07:50

Platform

Not Applicable

File name

X86_microsoft-windows-os-kernel_31bf3856ad364e35_6.0.6002.22890_none_6e3f3403caafe655.manifest

File version

Not Applicable

File size

18,682

Date (UTC)

07-Jul-2012

Time (UTC)

05:06

Platform

Not Applicable

File name

X86_microsoft-windows-r..gistry-trustedtypes_31bf3856ad364e35_6.0.6002.22938_none_8655afb444bd1128.manifest

File version

Not Applicable

File size

7,654

Date (UTC)

14-Sep-2012

Time (UTC)

14:56

Platform

Not Applicable

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

File name

Amd64_b322ec0bd4c6efc6257c0adf84b50259_31bf3856ad364e35_6.0.6002.22938_none_0429f16b14457222.manifest

File version

Not Applicable

File size

721

Date (UTC)

17-Sep-2012

Time (UTC)

07:50

Platform

Not Applicable

File name

Amd64_cb8f99ee78614511cf0d4b87bdec61f7_31bf3856ad364e35_6.0.6002.22890_none_408195ed128d1400.manifest

File version

Not Applicable

File size

701

Date (UTC)

17-Sep-2012

Time (UTC)

07:50

Platform

Not Applicable

File name

Amd64_microsoft-windows-os-kernel_31bf3856ad364e35_6.0.6002.22890_none_ca5dcf87830d578b.manifest

File version

Not Applicable

File size

17,282

Date (UTC)

07-Jul-2012

Time (UTC)

05:06

Platform

Not Applicable

File name

Amd64_microsoft-windows-r..gistry-trustedtypes_31bf3856ad364e35_6.0.6002.22938_none_e2744b37fd1a825e.manifest

File version

Not Applicable

File size

7,656

Date (UTC)

14-Sep-2012

Time (UTC)

15:52

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

2,635

Date (UTC)

17-Sep-2012

Time (UTC)

07:50

Platform

Not Applicable

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

File name

Ia64_418c3a2b40f27c5291e63b707658b5c6_31bf3856ad364e35_6.0.6002.22890_none_ef2dab5f486f9bfe.manifest

File version

Not Applicable

File size

699

Date (UTC)

17-Sep-2012

Time (UTC)

07:49

Platform

Not Applicable

File name

Ia64_d20e74aa39355b847aac674b73755975_31bf3856ad364e35_6.0.6002.22938_none_4a29f5925b2177bb.manifest

File version

Not Applicable

File size

719

Date (UTC)

17-Sep-2012

Time (UTC)

07:49

Platform

Not Applicable

File name

Ia64_microsoft-windows-os-kernel_31bf3856ad364e35_6.0.6002.22890_none_6e40d7f9caadef51.manifest

File version

Not Applicable

File size

17,606

Date (UTC)

07-Jul-2012

Time (UTC)

05:06

Platform

Not Applicable

File name

Ia64_microsoft-windows-r..gistry-trustedtypes_31bf3856ad364e35_6.0.6002.22938_none_865753aa44bb1a24.manifest

File version

Not Applicable

File size

7,655

Date (UTC)

14-Sep-2012

Time (UTC)

14:22

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

2,459

Date (UTC)

17-Sep-2012

Time (UTC)

07:49

Platform

Not Applicable

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