Thursday, 25 November 2010

Windows File Protection - SFC

System File Checker or SFC will run against you windows files and check that they are correct and accounted for. It does more but hopefully that will suffice.

There are 3 options I'm interested in to run it are
sfc /scannow
sfc /scanonce
sfc /scanboot

The SfcScan values are set in the following registry key's

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
0x0 = do not scan protected files after restart. (Default value)
0x1 = scan all protected files after every restart (set if sfc /scanboot is run).
0x2 = scan all protected files one time after a restart (set if sfc /scanonce is run).

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