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Check windows 10/11 installation
In command prompt as superuser
DISM.exe /Online /Cleanup-image /Restorehealth
sfc /scannow
Run cmd for group policy editor
gpedit.msc
Using System File Checker in Windows
DISM.exe /Online /Cleanup-image /Restorehealth (note the space before each "/"), and then press Enter. (Note: This step may take a few minutes to start and complete.)sfc /scannow (note the space between "sfc" and "/") and press Enter.