System File Checker For Windows Xp

Scans and verifies the versions of all protected system files after you restart your computer. Syntax

sfc [/scannow] [/scanonce] [/scanboot] [/revert] [/purgecache] [/cachesize=x]

Parameters

/scannow
Scans all protected system files immediately.
/scanonce
Scans all protected system files once.
/scanboot
Scans all protected system files every time the computer is restarted.
/revert
Returns the scan to its default operation.
/purgecache
Purges the Windows File Protection file cache and scans all protected system files immediately.
/cachesize=x
Sets the size, in MB, of the Windows File Protection file cache.
/?
Displays help at the command prompt.

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