Introduction | Windows	Helpline Q&A Directory
What does System File Checker do? Can you explain how SFC works? The SFC (System File Checker) checks that original Windows 98 files - the ones on your hard disk that came from the Windows 98 CD-ROM - are in good condition. To launch it, select Start, Run, Type sfc and press Enter. The program looks at Windows files and restores bad ones. However, SFC can't tell a corrupt file from an updated one, so run the program after you update Windows and select Update verification information for any file that SFC complains about.
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