An update that prevents a "0xC0000034" error message when you try to install Windows 7 SP1, Windows Server 2008 R2 SP1, or Windows Embedded Standard 7 SP1 is available

This update should be installed to resolve this issue with Windows 7 SP1, Windows Server 2008 R2 SP1, and Windows Embedded Standard 7 SP1, and to help avoid this issue with future updates.

Update information

How to obtain this update

Windows Update

To resolve this issue in Windows 7 SP1, Windows Server 2008 R2 SP1, and Windows Embedded Standard 7 SP1, install this update from Windows Update.

Microsoft Download Center

The following files are available for download from the Microsoft Download Center:
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to obtain 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.


Notes

• You must install this update package on a computer that is running Windows 7 or Windows Server 2008 R2 operating system. You cannot install this update on an offline image.
• In a Windows Server Update Services (WSUS) environment, this update is marked as "Exclusive." You will only be offered this update if you have installed all other updates that are marked as "Important."

Prerequisites

To apply this update, you must be running one of the following operating systems:

• Windows 7
• Windows 7 Service Pack 1 (SP1)
• Windows Server 2008 R2
• Windows Server 2008 R2 Service Pack 1 (SP1)
• Windows Embedded Standard 7 SP1

Registry information

To use the update in this package, you do not have to make any changes to the registry.

Restart requirement

You do not have to restart the computer after you apply this update.

Update replacement information

This update does not replace a previously released update.

Update removal information

You cannot remove this update.

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.

Note The files in the update package may be added to the %windir%\WinSxS\ folder instead of the %windir%\System32\ folder.

Windows 7 and Windows Server 2008 R2 file information notes

• 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 1. 17xxx	Windows 7 and Windows Server 2008 R2	SP1	GDR

• GDR service branches contain only those fixes that are widely released to address widespread, extremely important 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 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

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

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

For all supported x86-based versions of Windows Embedded Standard 7

For all supported x64-based versions of Windows Embedded Standard 7