What does Dism /Online /Cleanup-Image and sfc/ Scannow actually do?

[Aktiffiso]

Hi i see in some forums a users who use that comands i want to know what exactly does and what exactly repairs. Some people says it only repairs windows update . I read and think they repair whole system. What they do

. Dism /Online /Cleanup-Image /RestoreHealth

sfc/ Scannow

 

[harlan4096]

https://support.microsoft.com/es-es...er-tool-to-repair-missing-or-corrupted-system
Reparar una imagen de Windows

 

[Bleak]

https://support.microsoft.com/es-es...er-tool-to-repair-missing-or-corrupted-system
Reparar una imagen de Windows

Just for readers' convenience; can you edit your links to be in English. replace es-es with en-US.

 

[harlan4096]

Repair a Windows Image
https://support.microsoft.com/en-us...er-tool-to-repair-missing-or-corrupted-system

 

[frogboy]

https://support.microsoft.com/es-es...er-tool-to-repair-missing-or-corrupted-system
Reparar una imagen de Windows

I just used a translator and all was good.

 

[harlan4096]

Sorry, as my main language is Spanish, Microsoft websites show me them in Spanish by default and automatically...

In the 1st link just changed es-es by en-en, and in the second, at the left bottom You have a setting to change the language

 

[Marko :)]

As far as I know, sfc /scannow attempts to fix corrupted system files from Windows Component Store and it doesn't require internet connection. Dism /Online /Cleanup-Image /RestoreHealth attempts to fix corrupted system files from Windows Update therefore internet access is required.

If you ever encounter problems, you should run sfc /scannow first and if it doesn't succeed, then run Dism /Online /Cleanup-Image /RestoreHealth. When Dism command is done, just run sfc /scannow again and restart PC. That's it!

 

[Aktiffiso]

It meqan for example if i delete system files or damange the config i can use sfc to repair offline and dism to repair online?