Alle Befehle sind ein einer Admin-CMD auszuführen.

1. Schritt: Windows Reparaturdateien erstellen.

dism /online /cleanup-image /scanhealth

Deployment Image Servicing and Management tool
Version: 10.0.19041.844

Image Version: 10.0.19042.870

[===========================89.6%===================       ]


dism /online /cleanup-image /checkhealth

Deployment Image Servicing and Management tool
Version: 10.0.19041.844

Image Version: 10.0.19042.870

No component store corruption detected.
The operation completed successfully.


dism /online /cleanup-image /restorehealth

Deployment Image Servicing and Management tool
Version: 10.0.19041.844

Image Version: 10.0.19042.870

[===========================84.9%=================         ]
[==========================100.0%==========================] The restore operation completed successfully.
The operation completed successfully.

https://docs.microsoft.com/de-de/windows-hardware/manufacture/desktop/repair-a-windows-image?view=windows-11

2. Schritt: Suche nach Beschädigungen.

sfc /scannow

Beginning system scan.  This process will take some time.

Beginning verification phase of system scan.
Verification 100% complete.

Windows Resource Protection found corrupt files and successfully repaired them.
For online repairs, details are included in the CBS log file located at
windir\Logs\CBS\CBS.log. For example C:\Windows\Logs\CBS\CBS.log. For offline
repairs, details are included in the log file provided by the /OFFLOGFILE flag.

https://support.microsoft.com/de-de/topic/verwenden-des-systemdatei-%C3%BCberpr%C3%BCfungsprogramms-sfc-exe-zur-problembehandlung-bei-fehlenden-oder-besch%C3%A4digten-systemdateien-79aa86cb-ca52-166a-92a3-966e85d4094e