Loaded user profiles cannot be unloaded after you run WMI queries for the Win32_StartupCommand class in Windows Vista, Windows Server 2008, Windows 7, or Windows Server 2008 R2

Symptoms

Assume that you run a service which queries the Win32_StartupCommand Windows Management Instrumentation (WMI) class on a computer that is running Windows Vista, Windows Server 2008, Windows 7, or Windows Server 2008 R2.

In this situation, all loaded user profiles occasionally cannot be unloaded successfully after the WMI query is finished. If the number of unloaded user profiles keeps increasing, the system resources may be exhausted. For example, the virtual address control block (VACB) may be exhausted.

Here is a sample scenario:

  • You run a service on a computer that is running Windows Server 2008.

  • The service queries the Win32_QuickFixEngineering WMI class first.

  • The service then queries the Win32_StartupCommand WMI class.

In this scenario, all loaded user profiles cannot be unloaded. If you open the HKEY_USERS registry subtree by using an administrator account, you find that the user profiles are still loaded.

Note You can obtain more information about the loaded user profiles from the following registry subkey:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList

Cause

The issue occurs because a cached handle for the HKEY_USERS registry subtree prevents the Wmiprvse.exe process from being able to unload the user profiles.

Resolution

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 one of the following operating systems:

  • Windows Vista Service Pack 2 (SP2)

  • Windows Server 2008 Service Pack 2 (SP2)

  • Windows 7

  • Windows 7 Service Pack 1 (SP1)

  • Windows Server 2008 R2

  • Windows Server 2008 R2 Service Pack 1 (SP1)

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

For more information about how to obtain a Windows 7 or 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 the hotfix in this package, 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.xxxxx 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 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 x86-based versions of Windows Server 2008 and of Windows Vista

File name

File version

File size

Date

Time

Platform

Cimwin32.dll

6.0.6002.22745

1,373,696

23-Nov-2011

15:36

x86

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

File name

File version

File size

Date

Time

Platform

Cimwin32.dll

6.0.6002.22745

2,104,832

23-Nov-2011

15:24

x64

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

File name

File version

File size

Date

Time

Platform

Cimwin32.dll

6.0.6002.22745

4,315,648

23-Nov-2011

15:17

IA-64

Windows 7 and Windows Server 2008 R2 file information notes


Important 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, 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

    6.1.760
    0.
    21xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    LDR

    6.1.760
    1.
    21xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    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 2008 R2 and for Windows 7" 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 x86-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Cimwin32.dll

6.1.7600.21095

1,341,440

22-Nov-2011

05:36

x86

Cimwin32.dll

6.1.7601.21864

1,342,976

22-Nov-2011

05:24

x86

For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Cimwin32.dll

6.1.7600.21095

2,055,680

22-Nov-2011

06:42

x64

Cimwin32.dll

6.1.7601.21864

2,058,752

22-Nov-2011

06:23

x64

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

File name

File version

File size

Date

Time

Platform

Cimwin32.dll

6.1.7600.21095

4,280,320

22-Nov-2011

05:28

IA-64

Cimwin32.dll

6.1.7601.21864

4,280,320

22-Nov-2011

05:13

IA-64

Workaround

To work around this issue, run any program by using the credentials of the affected user profiles.

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

For more information about predefined keys, visit the following Micrososft website:

General information about predefined keysFor more information about the Win32_StartupCommand class, visit the following Micrososft website:

General information about the Win32_StartupCommand classFor more information about the Win32_QuickFixEngineering class, visit the following Micrososft website:

General information about the Win32_QuickFixEngineering class

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

3,078

Date (UTC)

24-Nov-2011

Time (UTC)

05:52

Platform

Not applicable

File name

X86_6604d0c23808c9cc4ca3a3c3f9185767_31bf3856ad364e35_6.0.6002.22745_none_8d926c5c626f9ee1.manifest

File version

Not applicable

File size

719

Date (UTC)

24-Nov-2011

Time (UTC)

05:52

Platform

Not applicable

File name

X86_microsoft-windows-w..ovider-cimwin32-dll_31bf3856ad364e35_6.0.6002.22745_none_d1f4d2bc1c6f9549.manifest

File version

Not applicable

File size

14,346

Date (UTC)

23-Nov-2011

Time (UTC)

16:01

Platform

Not applicable

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

File name

Amd64_b1d9b444a5d2a45ef161b54219bb557a_31bf3856ad364e35_6.0.6002.22745_none_7ca1467cd34a41f1.manifest

File version

Not applicable

File size

723

Date (UTC)

24-Nov-2011

Time (UTC)

05:52

Platform

Not applicable

File name

Amd64_microsoft-windows-w..ovider-cimwin32-dll_31bf3856ad364e35_6.0.6002.22745_none_2e136e3fd4cd067f.manifest

File version

Not applicable

File size

14,679

Date (UTC)

23-Nov-2011

Time (UTC)

15:46

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

3,102

Date (UTC)

24-Nov-2011

Time (UTC)

05:52

Platform

Not applicable

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

File name

Ia64_9e5a2babc02d196448ddbb92a4ec9555_31bf3856ad364e35_6.0.6002.22745_none_d05ee0e32f4656ab.manifest

File version

Not applicable

File size

721

Date (UTC)

24-Nov-2011

Time (UTC)

05:52

Platform

Not applicable

File name

Ia64_microsoft-windows-w..ovider-cimwin32-dll_31bf3856ad364e35_6.0.6002.22745_none_d1f676b21c6d9e45.manifest

File version

Not applicable

File size

14,648

Date (UTC)

23-Nov-2011

Time (UTC)

15:31

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,255

Date (UTC)

24-Nov-2011

Time (UTC)

05:52

Platform

Not applicable

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7

File name

Update.mum

File version

Not applicable

File size

2,661

Date (UTC)

23-Nov-2011

Time (UTC)

12:03

Platform

Not applicable

File name

X86_6e5775210b8a15d604fb0d1fd2697f29_31bf3856ad364e35_6.1.7601.21864_none_523312d7472b4b00.manifest

File version

Not applicable

File size

719

Date (UTC)

23-Nov-2011

Time (UTC)

12:03

Platform

Not applicable

File name

X86_a8cba47d488da6ae18386d97da192c67_31bf3856ad364e35_6.1.7600.21095_none_a37feeb4304d5c8c.manifest

File version

Not applicable

File size

719

Date (UTC)

23-Nov-2011

Time (UTC)

12:03

Platform

Not applicable

File name

X86_microsoft-windows-w..ovider-cimwin32-dll_31bf3856ad364e35_6.1.7600.21095_none_cffff5d3808941b6.manifest

File version

Not applicable

File size

5,224

Date (UTC)

22-Nov-2011

Time (UTC)

06:18

Platform

Not applicable

File name

X86_microsoft-windows-w..ovider-cimwin32-dll_31bf3856ad364e35_6.1.7601.21864_none_d205ec177d980a5d.manifest

File version

Not applicable

File size

5,224

Date (UTC)

22-Nov-2011

Time (UTC)

06:10

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

Amd64_5e41e5f078758f8e850f70a632c10840_31bf3856ad364e35_6.1.7601.21864_none_115a4ee2e67c75d4.manifest

File version

Not applicable

File size

723

Date (UTC)

23-Nov-2011

Time (UTC)

12:03

Platform

Not applicable

File name

Amd64_e6058066e24fb6be7b650f7dfdb3cdd5_31bf3856ad364e35_6.1.7600.21095_none_88145d391b6f8a70.manifest

File version

Not applicable

File size

723

Date (UTC)

23-Nov-2011

Time (UTC)

12:03

Platform

Not applicable

File name

Amd64_microsoft-windows-w..ovider-cimwin32-dll_31bf3856ad364e35_6.1.7600.21095_none_2c1e915738e6b2ec.manifest

File version

Not applicable

File size

5,228

Date (UTC)

22-Nov-2011

Time (UTC)

07:23

Platform

Not applicable

File name

Amd64_microsoft-windows-w..ovider-cimwin32-dll_31bf3856ad364e35_6.1.7601.21864_none_2e24879b35f57b93.manifest

File version

Not applicable

File size

5,228

Date (UTC)

22-Nov-2011

Time (UTC)

06:56

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

3,103

Date (UTC)

23-Nov-2011

Time (UTC)

12:03

Platform

Not applicable

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

File name

Ia64_172533fb6d386d6af34890b61a59142c_31bf3856ad364e35_6.1.7601.21864_none_8ac8096853e22bba.manifest

File version

Not applicable

File size

721

Date (UTC)

23-Nov-2011

Time (UTC)

12:03

Platform

Not applicable

File name

Ia64_35579153321dd4474987192ef491db74_31bf3856ad364e35_6.1.7600.21095_none_23362dbe993150ff.manifest

File version

Not applicable

File size

721

Date (UTC)

23-Nov-2011

Time (UTC)

12:03

Platform

Not applicable

File name

Ia64_microsoft-windows-w..ovider-cimwin32-dll_31bf3856ad364e35_6.1.7600.21095_none_d00199c980874ab2.manifest

File version

Not applicable

File size

5,226

Date (UTC)

22-Nov-2011

Time (UTC)

07:00

Platform

Not applicable

File name

Ia64_microsoft-windows-w..ovider-cimwin32-dll_31bf3856ad364e35_6.1.7601.21864_none_d207900d7d961359.manifest

File version

Not applicable

File size

5,226

Date (UTC)

22-Nov-2011

Time (UTC)

06:44

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

1,947

Date (UTC)

23-Nov-2011

Time (UTC)

12:03

Platform

Not applicable

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