It means you need to launch Command prompt with Administrator privileges.
Open Start, type: CMD
Right click CMD
Click Run as administrator
At the Command Prompt, type: sfc/scannow
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What's a console session? I can't "sfc/scannow".
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It means you need to launch Command prompt with Administrator privileges.
Open Start, type: CMD
Right click CMD
Click Run as administrator
At the Command Prompt, type: sfc/scannow
Microsoft Windows [Version 10.0.14393]
(c) 2016 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>cmd
Microsoft Windows [Version 10.0.14393]
(c) 2016 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>sfc/scannow
Windows Resource Protection could not start the repair service.
C:\WINDOWS\system32>
Try running SFC in safe mode.
Microsoft Windows [Version 10.0.14393]
(c) 2016 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>cmd
Microsoft Windows [Version 10.0.14393]
(c) 2016 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>sfc/scannow
Windows Resource Protection could not start the repair service.
C:\WINDOWS\system32>
Please see for a detailed instructions: