net start wuauserv net start cryptSvc net start bits net start msiserver Boot into Safe Mode with Networking and run:
Stop services:
Get-WindowsPackage -Online | Where-Object $_.ReleaseType -eq "Security Update" | Remove-WindowsPackage -Online -NoRestart Then reinstall the latest cumulative update manually from Microsoft Update Catalog. Download the same KB update that initially failed. Extract its .cab file and manually replace missing manifests: 0xc86044d2 full
sfc /scannow If SFC reports unfixable corruption, note the CBS log path ( C:\Windows\Logs\CBS\CBS.log ) and search for “0xc86044d2” inside. For advanced users: net start wuauserv net start cryptSvc net start
expand -F:* C:\path\to\update.cab C:\extracted Then use dism /online /add-package /packagepath:C:\extracted Open regedit , navigate to: 0xc86044d2 full