Important This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry
When you run System File Checker (Sfc.exe) with the scannow switch in Microsoft Windows XP Service Pack 2 (SP2), you are prompted for a Windows XP (SP2) CD, but Sfc.exe will not accept a network location that contains the Windows XP SP2 CD.
Note This problem also applies to Microsoft Windows Server 2003 Service Pack 1.
This problem occurs when the service pack is deployed from an internal network server, and the ServicePackSourcePath registry subkey has been modified to point to the network location that contains the extracted files for Windows XP SP2. The ServicePackSourcePath registry subkey is located in
Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
To resolve this problem, modify the registry to point to the %windir%\ServicePackFiles folder. To do this, follow these steps:
When the service pack is installed
Click Start, click Run, type regedit, and then click OK.