The computer stops responding when you try to shut down a computer that is running Windows Preinstallation Environment 2.0

When you try to shut down a computer that is running Windows Preinstallation Environment (Windows PE) 2.0, the computer stops responding (hangs). This problem occurs if the computer is running the Microsoft Storport driver (Storport.sys).

This problem occurs because the Storport.sys driver in Windows PE 2.0 incorrectly forwards interrupts to the miniport when the PCI bus is in the D3 (device off) state.

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 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 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 Web site: Note 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.

Hotfix instructions

To use this hotfix, follow these steps:

1. To manually extract the files to a temporary location, run the following commands:
   Expand -f:* Path \Windows6.0-KB946383-x86.msu Target_path
   Expand -f:* Path \Windows6.0-KB946383-x86.cab Target_path
2. To mount the Winpe.wim file, run the Imagex.exe tool by using the following command:
   IMAGEX.EXE /mountrw Path_of_the_WindowsPE.WIM 1 Staging_area
3. Copy the updated Storport.sys file to the System32\drivers directory of the mounted Winpe.wim file.
4. To unmount the Winpe.wim file, run the Imagex.exe tool together with the /commit switch by using the following command:
   IMAGEX.EXE /unmount /commit

Prerequisites

There are no prerequisites for installing 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 PE 2.0, x86-based versions

Windows PE 2.0, x64-based versions

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: