0x8000FFFF

Windows Update error 0x8000FFFF

Additional symptoms:

• sfc /scannow stuck at 7% and cannot complete.
• mmc.exe - app locked
• Able to run mmc.exe from Power Shell run as Administrator

Try to fix:

• bitsadmin.exe /reset /allusers
• chkdks /r
• ICACLS C:\Windows\winsxs
• ADW Cleaner

• Servicing Stack Update
  • systeminfo - check Windows version
  • Latest SSU Updates
  • Install KB4586864

• Smart Fix

Anty malware tools:

• Farbar Recovery Scan Tool FRST

DISM:

Dism.exe /online /cleanup-image /scanhealth
Error: 4448
Sterownik WOF napotkał uszkodzenie w tabeli zasobów skompresowanego pliku.

Dism.exe /online /cleanup-image /restorehealth
 
REM mount Windows folder from another healthy system as Y:
Dism.exe /online /cleanup-image /restorehealth /Source:Y:\ /LimitAccess

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