When you use the System Preparation tool and the Sysprep.inf file to update drivers on a Microsoft Windows XP image, the File Signature Verification tool may report that some drivers are not digitally signed

When you use the System Preparation tool (Sysprep.exe) and the Sysprep.inf file to update drivers on a Microsoft Windows XP image, and then you use the File Signature Verification tool (Sigverif.exe) to verify that the system files on the computer are digitally signed, Sigverif.exe may report that some drivers are not digitally signed. This problem may sometimes cause driver-related problems during startup.

This problem does not occur if you add the drivers by including the path of the drivers in the OEMPnPDriversPath section of the Unattend.txt file. This problem also does not occur if the drivers are manually updated.

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.

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 tool in Control Panel.

32-bit editions of Windows XP

64-bit edition of Windows XP

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