Beschädigte/fehlende DLL-Dateien reparieren (SFC/DISM)
Das Systemdatei-Überprüfungsprogramm ist ein Hilfsprogramm in Windows, mit dem Benutzer Windows-Systemdateien auf Beschädigungen überprüfen und beschädigte Dateien wiederherstellen können.
sfc /scannow
Weitere Informationen: https://support.microsoft.com/de-ch/help/929833/use-the-system-file-checker-tool-to-repair-missing-or-corrupted-system
DISM
CheckHealth (fast, no repair)
DISM /Online /Cleanup-Image /CheckHealth
ScanHealth (slow, advanced scan, no repair)
DISM /Online /Cleanup-Image /ScanHealth
RestoreHealth (slow, repair corruption)
DISM /Online /Cleanup-Image /RestoreHealth
DISM repair with different source
RestoreHealth with different source (Example: Remote Windows directory as a source, Windows version must be the same! | Solution for 0x800f081f)
DISM /Online /Cleanup-Image /RestoreHealth /Source:\\<HOSTNAME>\c$\Windows /LimitAccess
RestoreHealth with different source (Example: Windows ISO-Image mounted as H:)
DISM /Online /Cleanup-Image /RestoreHealth /Source:H:\sources\install.wim /LimitAccess
More informations: https://www.windowscentral.com/how-use-dism-command-line-utility-repair-windows-10-image