Symptoms

Assume that you run the Reg.exe command prompt utility together with the FLAGS option on a computer that is running Windows 7 Service Pack 1 (SP1) or Windows Server 2008 R2 SP1 in order to query the state of the virtualization flags for a key. For example, you run the following command:

reg.exe FLAGS HKLM\Software QUERY In this situation, help information about how to use the Reg.exe utility is returned instead of the status of the flags. 

Cause

This issue occurs only under certain memory conditions in which a variable is used by a certain function before the variable is initialized.

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 Windows 7 SP1 or Windows Server 2008 R2 SP1.

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:

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

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.

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 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

    Milestone

    Service branch

    6.1.760
    1.18xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    GDR

    6.1.760
    1.22xxx

    Windows 7 and 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 separately in the "Additional file information for Windows 7 and for Windows Server 2008 R2" section. MUM 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 7

File name

File version

File size

Date

Time

Platform

Reg.exe

6.1.7601.18120

62,464

03-Apr-2013

02:53

x86

Reg.exe

6.1.7601.22290

62,464

03-Apr-2013

04:33

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

Reg.exe

6.1.7601.18120

74,752

03-Apr-2013

03:14

x64

Reg.exe

6.1.7601.22290

74,752

03-Apr-2013

05:24

x64

Reg.exe

6.1.7601.18120

62,464

03-Apr-2013

02:53

x86

Reg.exe

6.1.7601.22290

62,464

03-Apr-2013

04:33

x86

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

File name

File version

File size

Date

Time

Platform

Reg.exe

6.1.7601.18120

169,472

03-Apr-2013

02:26

IA-64

Reg.exe

6.1.7601.22290

169,472

03-Apr-2013

04:31

IA-64

Reg.exe

6.1.7601.18120

62,464

03-Apr-2013

02:53

x86

Reg.exe

6.1.7601.22290

62,464

03-Apr-2013

04:33

x86


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:

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

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-bf.mum

File version

Not applicable

File size

2,070

Date (UTC)

04-Apr-2013

Time (UTC)

07:25

Platform

Not applicable

File name

X86_66e54115e3fd32acc163fd729e279051_31bf3856ad364e35_6.1.7601.18120_none_adc70d72d7bb69f6.manifest

File version

Not applicable

File size

715

Date (UTC)

04-Apr-2013

Time (UTC)

07:25

Platform

Not applicable

File name

X86_d17a5a64e5800048476cd4a6e78aea2c_31bf3856ad364e35_6.1.7601.22290_none_d774c19596952817.manifest

File version

Not applicable

File size

715

Date (UTC)

04-Apr-2013

Time (UTC)

07:25

Platform

Not applicable

File name

X86_microsoft-windows-r..-commandline-editor_31bf3856ad364e35_6.1.7601.18120_none_338cae7488fd6d8a.manifest

File version

Not applicable

File size

2,419

Date (UTC)

03-Apr-2013

Time (UTC)

05:38

Platform

Not applicable

File name

X86_microsoft-windows-r..-commandline-editor_31bf3856ad364e35_6.1.7601.22290_none_33ca9bcba253d0eb.manifest

File version

Not applicable

File size

2,419

Date (UTC)

03-Apr-2013

Time (UTC)

05:05

Platform

Not applicable

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

File name

Amd64_07a1fcb321139bb80dcf01c11bc76816_31bf3856ad364e35_6.1.7601.22290_none_60436a4aec500436.manifest

File version

Not applicable

File size

719

Date (UTC)

04-Apr-2013

Time (UTC)

07:25

Platform

Not applicable

File name

Amd64_4bb28da33991da3c07d27af63cf94cc6_31bf3856ad364e35_6.1.7601.18120_none_43d74975ed96e2d1.manifest

File version

Not applicable

File size

719

Date (UTC)

04-Apr-2013

Time (UTC)

07:25

Platform

Not applicable

File name

Amd64_66e54115e3fd32acc163fd729e279051_31bf3856ad364e35_6.1.7601.18120_none_09e5a8f69018db2c.manifest

File version

Not applicable

File size

717

Date (UTC)

04-Apr-2013

Time (UTC)

07:25

Platform

Not applicable

File name

Amd64_7325521d71985749bc14ef163c23ae95_31bf3856ad364e35_6.1.7601.18120_none_66d3f873f31bae06.manifest

File version

Not applicable

File size

1,078

Date (UTC)

04-Apr-2013

Time (UTC)

07:25

Platform

Not applicable

File name

Amd64_d17a5a64e5800048476cd4a6e78aea2c_31bf3856ad364e35_6.1.7601.22290_none_33935d194ef2994d.manifest

File version

Not applicable

File size

717

Date (UTC)

04-Apr-2013

Time (UTC)

07:25

Platform

Not applicable

File name

Amd64_deded0cfa9a272637c39864e300e8f67_31bf3856ad364e35_6.1.7601.22290_none_840de301932306a5.manifest

File version

Not applicable

File size

1,078

Date (UTC)

04-Apr-2013

Time (UTC)

07:25

Platform

Not applicable

File name

Amd64_microsoft-windows-r..-commandline-editor_31bf3856ad364e35_6.1.7601.18120_none_8fab49f8415adec0.manifest

File version

Not applicable

File size

2,423

Date (UTC)

03-Apr-2013

Time (UTC)

06:31

Platform

Not applicable

File name

Amd64_microsoft-windows-r..-commandline-editor_31bf3856ad364e35_6.1.7601.22290_none_8fe9374f5ab14221.manifest

File version

Not applicable

File size

2,423

Date (UTC)

03-Apr-2013

Time (UTC)

05:53

Platform

Not applicable

File name

Update-bf.mum

File version

Not applicable

File size

2,695

Date (UTC)

04-Apr-2013

Time (UTC)

07:25

Platform

Not applicable

File name

X86_microsoft-windows-r..-commandline-editor_31bf3856ad364e35_6.1.7601.18120_none_338cae7488fd6d8a.manifest

File version

Not applicable

File size

2,419

Date (UTC)

03-Apr-2013

Time (UTC)

05:38

Platform

Not applicable

File name

X86_microsoft-windows-r..-commandline-editor_31bf3856ad364e35_6.1.7601.22290_none_33ca9bcba253d0eb.manifest

File version

Not applicable

File size

2,419

Date (UTC)

03-Apr-2013

Time (UTC)

05:05

Platform

Not applicable

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

File name

Ia64_0225e67e80638b21caaf59327b1aac2d_31bf3856ad364e35_6.1.7601.18120_none_1208da6722430ffb.manifest

File version

Not applicable

File size

1,076

Date (UTC)

04-Apr-2013

Time (UTC)

07:25

Platform

Not applicable

File name

Ia64_bc90fe127c2081914289ce6e1cb42b1d_31bf3856ad364e35_6.1.7601.22290_none_52833f9f5c582765.manifest

File version

Not applicable

File size

1,076

Date (UTC)

04-Apr-2013

Time (UTC)

07:25

Platform

Not applicable

File name

Ia64_microsoft-windows-r..-commandline-editor_31bf3856ad364e35_6.1.7601.18120_none_338e526a88fb7686.manifest

File version

Not applicable

File size

2,421

Date (UTC)

03-Apr-2013

Time (UTC)

06:22

Platform

Not applicable

File name

Ia64_microsoft-windows-r..-commandline-editor_31bf3856ad364e35_6.1.7601.22290_none_33cc3fc1a251d9e7.manifest

File version

Not applicable

File size

2,421

Date (UTC)

03-Apr-2013

Time (UTC)

04:58

Platform

Not applicable

File name

Update-bf.mum

File version

Not applicable

File size

1,425

Date (UTC)

04-Apr-2013

Time (UTC)

07:25

Platform

Not applicable

File name

X86_microsoft-windows-r..-commandline-editor_31bf3856ad364e35_6.1.7601.18120_none_338cae7488fd6d8a.manifest

File version

Not applicable

File size

2,419

Date (UTC)

03-Apr-2013

Time (UTC)

05:38

Platform

Not applicable

File name

X86_microsoft-windows-r..-commandline-editor_31bf3856ad364e35_6.1.7601.22290_none_33ca9bcba253d0eb.manifest

File version

Not applicable

File size

2,419

Date (UTC)

03-Apr-2013

Time (UTC)

05:05

Platform

Not applicable


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