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Windows 7: sfc /scannow

06 Apr 2017   #1
americancritic2

Windows 7 Home Premium 64-Bit SP1
 
 
sfc /scannow

Hello could someone please explain to me why when you run a sfc /scannow most say run it 3 times.

I saw some of my Dad's old post's and he also asked people to run it 3 times.

If so how important is running it 3 times and why. Thank You

Danny...


My System SpecsSystem Spec
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07 Apr 2017   #2
georgeks

Windows 10 Pro x64
 
 

Hi there americancritic

This is a common practice IF any corrupt files are found (see the Tutorial here )

Otherwise one time is enough
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07 Apr 2017   #3
americancritic2

Windows 7 Home Premium 64-Bit SP1
 
 

Hi thank you georgeks your exploration was right to the point and right on the money. Thank You

Danny...
My System SpecsSystem Spec
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07 Apr 2017   #4
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

If sfc /scannow finds problems, reboot and run sfc /scannow again up to three times with reboots after each sfc /scannow that has found a problem.

The reason is, sometimes sfc /scannow will need a reboot to fix some problems during the rebooting. Some things can't be fixed while they are running. A reboot stops those things and restarts them again which give sfc /scannow the time to fix them, if possible.

Jack
My System SpecsSystem Spec
07 Apr 2017   #5
americancritic2

Windows 7 Home Premium 64-Bit SP1
 
 

Hello thank you all for letting me know, I think it will be very helpful in the future.
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 sfc /scannow




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