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How can I configure the Windows 2000 System File Checker?
John Savill
June 18, 1999
1 Min Read
A. Windows 2000 includes a new component which protects system filesby scanning all protected system files and replaces incorrect versions with correct Microsoft versions.
It is possible to modify the behavior of this protection using the SFC.EXEutility (you must be a member of the Administrators group).
SFC [/SCANNOW] [/SCANONCE] [/SCANBOOT] [/CANCEL] [/PURGECACHE] [/CACHESIZE=x] [/QUIET]
/SCANNOW Scans all protected system files immediately.
/SCANONCE Scans all protected system files once at the next boot.
/SCANBOOT Scans all protected system files at every boot.
/CANCEL Cancels all pending scans of protected system files.
/QUIET Replaces all incorrect file versions without prompting the user.
/PURGECACHE Purges the file cache and scans all protected system files immediately.
/CACHESIZE=x Sets the file cache sizeSetting the Quiet options updates HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsNTCurrentVersionWinlogonSFCDisable and the other options modifyHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionWinlogonSFCScan.
You can disable SFC by performing the following:
Start the registry editor (regedit.exe)
Move to HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionWinlogon
From the Edit menu select New - DWORD value
Enter a name of EnableFileProtection, press enter
Double click the value and set to 0
Close the registry editor
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