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Windows Image Repair#

  • dism: repair system image using Windows Update to restore ucorrupted files

  • scan but not repair corruptions

    Batchfile
    dism /Online /Cleanup-Image /CheckHealth

  • more advanced scan

    Batchfile
    dism /Online /Cleanup-Image /ScanHealth

  • scan and repair common issues

    Batchfile
    dism /Online /Cleanup-Image /RestoreHealth

  • use mounted installation media/iso to restore system files

    Batchfile
    dism /Online /Cleanup-Image /RestoreHealth /Source:F:\sources\Install.esd /LimitAccess

  • %windir%\Logs\DISM\dism.log: generated detailed log

  • System File Checker: scan/repair all protected system files using the local image files at %windir%\System32\dllcache
Batchfile
sfc /scannow
  • if sfc returns could not perform the requested operation
    • ensure folders exist %windir%\WinSxS\Temp\PendingDeletes, %windir%\WinSxS\Temp\PendingRenames
    • reboot into safe mode and rerun sfc

  • %windir%\Logs\CBS\CBS.log: generated detailed log; extract sfc process details only with

    Batchfile
    findstr /c:"[SR]" %windir%\Logs\CBS\CBS.log > "%userprofile%\Desktop\sfcdetails.txt"

  • Cleanup Windows Update

  • analyze component store for removable updates

    Batchfile
    dism /Online /Cleanup-Image /AnalyzeComponentStore

  • trigger cleanup

    Batchfile
    dism /Online /Cleanup-Image /StartComponentCleanup

  • trigger more time consuming follow-up cleanup

    Batchfile
    dism /Online /Cleanup-Image /StartComponentCleanup /ResetBase