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After you use the Last Known Good Configuration feature to start a computer that is running Windows Vista or Windows Server 2008, some .inf files that have been serviced may be deleted from the %windir%\inf folder.
Note These .inf files correspond to the drivers that are included with Windows.
If you try to install a new device that uses an .inf file that has been deleted, you may receive an error message that resembles the following:
Driver not found
If you try to reinstall the same version of driver that was originally serviced, the devices that use that .inf file may not work correctly.
The 953631 update is now available on the following Microsoft Update Web site:
The following files are available for download from the MicrosoftDownload Center:
Note You can apply this update only to systems that are missing the .inf files that are mentioned in the "Symptoms" section. If you try to apply this update on a system that is not missing these .inf files, you will receive a message that states that the update is not applicable.
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.
No prerequisites are required for Windows Vista-based computers or for Windows Server 2008-based computers.
You must restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Windows Vista and Windows Server 2008 file information notes
The MANIFEST files (.manifest) and MUM files (.mum) installed for each environment are listed separately . MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows Server 2008 and Windows Vista
For all supported x64-based versions of Windows Server 2008 and Windows Vista
For all supported IA-64-based versions of Windows Server 2008
Additional file information for Windows Server 2008 and for Windows Vista
Additional files for all supported x86-based versions of Windows Server 2008 and of Windows Vista
If you approve this update for deployment in a WSUS environment, be aware that after you run the update, it will not be reported as "Installed." The update itself is not installed on client computers. The update scans for missing files and replaces them as appropriate. If a computer requires a missing file, the 953631 update will be reported as "Needed.”
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.