Microsoft KB Archive/943360

= You cannot start Windows Preinstallation Environment (Windows PE) 2.0 from certain media on a Windows Vista-based computer =

Article ID: 943360

Article Last Modified on 12/21/2007

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APPLIES TO


 * Windows Vista Enterprise 64-bit Edition
 * Windows Vista Home Basic 64-bit Edition
 * Windows Vista Home Premium 64-bit Edition
 * Windows Vista Ultimate 64-bit Edition
 * Windows Vista Business
 * Windows Vista Business 64-bit Edition
 * Windows Vista Enterprise
 * Windows Vista Home Basic
 * Windows Vista Home Premium
 * Windows Vista Ultimate

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SYMPTOMS
When you try to start Windows Preinstallation Environment (Windows PE) 2.0 from certain media on a Windows Vista-based computer, Windows PE does not start. For example, this problem may occur when you try to start Windows PE from a thumb drive, from a small hard disk, or from similar storage media.



CAUSE
When Windows PE is started as a raw disk that is loaded on the media, Windows PE creates a hive log on the media. Then, Windows PE tries to write content to the hive log. If the media from which Windows PE is started is locked, Windows PE cannot write to the media.



RESOLUTION
A hotfix is available to resolve this problem. After you apply this hotfix, follow these steps.

Note To apply this hotfix on an x64-based computer, replace x86 with x64 in the commands in steps 1 and 2.  Manually extract the files to a temporary location. To do this, run the following commands:

Expand -f:*  \Windows6.0-KB943360-x86.msu

Expand -f:*  \Windows6.0-KB943360-x86.cab

 Mount the Winpe.wim file by running the Imagex.exe tool together with the /mountrw syntax. To do this, run the following command:

IMAGEX.EXE /mountrw  1

 Copy the updated Ntkrnlpa.exe and Ntoskrnl.exe files to the System32\boot directory of the mounted Winpe.wim file.

Note The x64-based version of the hotfix contains only the Ntoskrnl.exe file. Unmount the Winpe.wim file by using the Imagex.exe tool together with the /commit syntax. To do this, run the following command:

IMAGEX.EXE /commit



Hotfix information
A supported hotfix is now 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 this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
There are no prerequisites for installing this hotfix.

Restart requirement
You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace a previously released hotfix.

File information
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, x64-based versions


STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For more information about Windows PE 2.0, visit the following Microsoft Web site:

http://technet.microsoft.com/en-us/windowsvista/aa905120.aspx

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 query words: WinDrive

Keywords: kbfix kbexpertiseadvanced kbqfe kbhotfixserver KB943360

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