IT Toolbox
Guide

How to repair Windows with DISM and SFC

Control and repair Windows components and then system files protected.

TopicWindows 11 / Workstation →
⌚ About 2 min read
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Windows Intermediate. 15 to 45 min

Control and repair Windows components and then system files protected.

Avant de commencer : adaptez toujours les commandes et manipulations à votre environnement. Sur un système de production, prévoyez une backup ou un retour arrière lorsque l’action peut modifier la configuration.

Étapes à suivre

  1. 1

    Open an admin terminal

    Open Windows Terminal as an administrator.

  2. 2

    Control the Windows image

    Run DISM /Online / cleanup-Image /Scan-2005.

  3. 3

    Repair the image if necessary

    Run DISM /Online / cleanup-Image /Re Store-2005.

  4. 4

    Control System Files

    Run sfc /scannow.

  5. 5

    Restart and then control

    Restart the position and check if the problem is resolved.

Commands utiles

DISM /Online / cleanup-Image /Scan-2005
DISM /Online / cleanup-Image /Re Store-2005
sfc /scannow

À retenir

  • L, operation may seem blocked for several minutes.
  • Do a backup before any major intervention on a position with physical symptoms.
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Technical deep dive

DISM and SFC: know what each tool repairs

Technical checkpoints

  • DISM /RestoreHealth repairs the Windows component store; SFC then validates system files against that source.
  • SFC may fail to repair files when the WinSxS component store is damaged, which is why DISM usually precedes SFC.
  • CBS.log and DISM.log contain evidence about unrepaired components; rebooting without reading them can lose useful context.

Typical sequence

Run checks from an elevated console and verify the exit result before moving on.

DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannow

Topic-specific pitfalls

  • Using a /Source from the wrong Windows version/build can cause further failures.
  • DISM/SFC do not fix disk or RAM hardware faults.

How to validate

  • DISM finishes without remaining repairable corruption and SFC reports no integrity violations or successful repairs.
  • The original Windows Update or application failure is retested after reboot if required.
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