Windows File Protection (WFP) cannot restore files from the installation point that is specified in the SourcePath
registry value if the value specifies a mapped network drive.
For example, if you map drive X to \\server
for the installation files and you then install Windows XP from drive X, WFP cannot restore files from drive X.
To resolve this problem, obtain the latest service pack for Windows XP. For additional information, click the following article number to view the article in the
Microsoft Knowledge Base:
How to Obtain the Latest Windows XP Service Pack
The English version of this fix has the file attributes (or later) 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.
Date Time Version Size File name
08-Aug-2002 09:58 5.1.2600.53 133,120 Sfc_os.dll
: 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
To work around this problem, change the SourcePath
value in the registry to point to a Universal Naming Convention (UNC) path instead of a mapped network drive. The SourcePath
value is located in the following registry key:
Change the value to point to a UNC path instead of a mapped network drive. For example, change it to \\server
. In this example, this is the UNC equivalent of mapped network drive X.
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 XP Service Pack 1.