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Description of the Windows 2000 System File Checker (Sfc.exe)
Article ID: 222471 - View products that this article applies to.
This article was previously published under Q222471
For a Microsoft Windows XP and Windows Server 2003 version of this article, see 310747
NoticeThis article applies to Windows 2000. Support for Windows 2000 ends on July 13, 2010. The Windows 2000 End-of-Support Solution Center
(http://support.microsoft.com/?scid=http%3a%2f%2fsupport.microsoft.com%2fwin2000)is a starting point for planning your migration strategy from Windows 2000. For more information see the Microsoft Support Lifecycle Policy
This article describes the System File Checker tool (Sfc.exe) that is used with the Windows File Protection (WFP) feature.
The System File Checker tool gives an administrator the ability to scan all of the protected files to verify their versions. The System File Checker tool also checks and repopulates the %SystemRoot%\System32\Dllcache folder. If the Dllcache folder becomes damaged or unusable, you can use either the sfc /scanonce or sfc /scanboot command to repair the contents of the folder.
System File Checker Tool Syntax
(http://support.microsoft.com/kb/222193/EN-US/ )Description of the Windows 2000 Windows File Protection Feature