Microsoft Windows [Version 10.0.10240]
(c) 2015 Microsoft Corporation. All rights reserved.

C:\WINDOWS\system32>sfc

Microsoft (R) Windows (R) Resource Checker Version 6.0
Copyright (C) Microsoft Corporation. All rights reserved.

Scans the integrity of all protected system files and replaces incorrect version
s with
correct Microsoft versions.

SFC [/SCANNOW] [/VERIFYONLY] [/SCANFILE=<file>] [/VERIFYFILE=<file>]
    [/OFFWINDIR=<offline windows directory> /OFFBOOTDIR=<offline boot directory>
]

/SCANNOW        Scans integrity of all protected system files and repairs files
with
                problems when possible.
/VERIFYONLY     Scans integrity of all protected system files. No repair operati
on is
                performed.
/SCANFILE       Scans integrity of the referenced file, repairs file if problems
 are
                identified. Specify full path <file>
/VERIFYFILE     Verifies the integrity of the file with full path <file>.  No re
pair
                operation is performed.
/OFFBOOTDIR     For offline repair specify the location of the offline boot dire
ctory
/OFFWINDIR      For offline repair specify the location of the offline windows d
irectory

e.g.

        sfc /SCANNOW
        sfc /VERIFYFILE=c:\windows\system32\kernel32.dll
        sfc /SCANFILE=d:\windows\system32\kernel32.dll /OFFBOOTDIR=d:\ /OFFWINDI
R=d:\windows
        sfc /VERIFYONLY

C:\WINDOWS\system32>sfc /SCANNOW

Beginning system scan.  This process will take some time.


Windows Resource Protection could not perform the requested operation.

C:\WINDOWS\system32>