DISM scan taking too long

James Brittle 40 Reputation points
2026-10-04T18:18:51.2933333+00:00

i did the dism scan couple of days ago and it was around 60% complete and i closed it down and tried to start one today but it didn't show any percentage for over an hour, so i closed it and don't know what else to do

Windows for home | Windows 11 | Performance and system failures
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  1. AI answer

    2026-10-04T18:19:04.9933333+00:00

    If DISM appears stuck around 60% or shows no percentage for a long time, the supported next step is:

    1. Close the terminal window.
    2. Restart the PC, not shut down.
    3. Open Command Prompt as administrator:
      • Open Start
      • Type Command Prompt
      • Right-click Command Prompt
      • Select Run as administrator
    4. Run: 
         DISM.exe /Online /Cleanup-image /Restorehealth
    5. Let it finish. This command can take several minutes to start and complete.

    After DISM completes successfully and shows "The operation completed successfully", run:

    sfc /scannow

    Important:

    • Do not close the Command Prompt window while sfc /scannow is running until verification reaches 100%.
    • DISM works best when the PC can connect to Windows Update, because it can fetch missing or corrupted files from Microsoft Update servers.

    If DISM still will not complete after the restart, on Windows 11 the next supported step is:

    • Open Settings → System → Recovery
    • Select Reinstall now in Fix problems with Windows Updates

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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  2. Ramesh 182K Reputation points Volunteer Moderator
    2026-10-04T18:36:01.9833333+00:00

    Please run:

    DISM.exe /Online /Cleanup-image /Scanhealth

    After it completes, attach the file C:\Windows\Logs\CBS\CBS.log in your next reply.

    If the CBS.log file is too big, share it on OneDrive or GoFile.io, and post the link here.

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