Uninstalling and Reinstalling Signed Third-Party Driver Generates "Unsigned Driver" Message

This article was previously published under Q257300
This article has been archived. It is offered "as is" and will no longer be updated.
If you have a third-party driver that was installed by using the OEMPNPDriversPath mechanism in an Unattend.txt file, uninstalling the driver and then reinstalling it may cause Windows to display a dialog box stating that the driver is not digitally signed. This occurs only on system volumes that use the FAT or FAT32 file system. The problem does not occur with the NTFS file system.
This behavior is caused by a problem in the Setupapi.dll dynamic-link library (DLL).
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 1.
For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:
249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Article ID: 257300 - Last Review: 10/20/2013 18:18:29 - Revision: 3.4

  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Professional Edition
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