Support Article - Reset Windows SFC DISM

1 right click on your start menu

And select Windows Powershell (Admin)

Or Command Prompt (Admin)

Say yes when prompted

A blue or black window will pop up where you can type commands

In the Powershell or command window type the following commands

Chkdsk c: /f/r/x & press return

This command may take some time to complete

If this completes without any errors move on to the next step

Type SFC /Scannow

This will attempt to repair any corrupt/damaged windows files

If it finishes without any errors or finds errors but fixes them move to next step

Type DISM /Online /Cleanup-Image /RestoreHealth

This will fix any corrupt files but also download any missing files it needs

Once complete run SFC /Scannow

Once completed with no errors your Windows installation should be repaired