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Windows Update · reviewed troubleshooting

Windows Update component-store corruption: DISM and SFC repair path

Use this path for servicing errors such as 0x800F081F, 0x800F0831 and 0x80073712 when component-store repair is relevant.

Applies to: Windows 11Change risk: MediumReviewed: 2026-09-17
Do this first
  1. Record the exact hexadecimal error and failing update.
  2. Run the Windows Update troubleshooter first.
  3. Restart and retry once after the troubleshooter.
  4. Use DISM/SFC when the error maps to component-store corruption or missing servicing content.

What this problem usually means

Microsoft’s current Windows Update troubleshooting documentation maps several CBS/servicing errors to component-store corruption or missing repair source content. These errors deserve a component-repair branch rather than generic cache deletion as the default answer.

Ordered repair path

Work from the narrowest fix to the broader one.

1

Repair the Windows component image with DISM

Medium risk

Why this belongs here: Microsoft maps these component-store errors to DISM RestoreHealth as a standard mitigation.

  1. Open Windows Terminal or Command Prompt as administrator.
  2. Run DISM RestoreHealth and wait for completion.
  3. Do not interrupt the repair operation.
DISM.exe /Online /Cleanup-Image /RestoreHealth
2

Run SFC after DISM completes

Medium risk

Why this belongs here: SFC checks protected system files after the component repair source has been addressed.

  1. In the elevated terminal, run SFC.
  2. Wait for verification to complete.
  3. Restart Windows before trying the update again.
sfc /scannow
3

Use a matching repair source only when DISM requires it

Medium risk

Why this belongs here: 0x800F081F can indicate that the source required for repair cannot be found; a random image/source can make troubleshooting worse.

  1. Record the DISM error instead of repeatedly rerunning the same command.
  2. Verify the installed Windows edition/build before choosing external installation media as a repair source.
  3. Use Microsoft’s servicing guidance for a matching source or move to the supported reinstall-repair path.
Before you do this: Do not copy a /Source command from another PC unless the image source actually matches the Windows installation being repaired.
Stop condition

When this guide stops being the right path

If the error is access denied, disk corruption, network delivery or another non-component-store class, use the error-specific record instead of forcing DISM into every update failure.

If the problem is still not fixed

If component repair repeatedly fails, the Windows 11 “Fix problems using Windows Update” reinstall option can be a supported next stage on eligible systems because it reinstalls the same Windows version while preserving apps, files and settings.

Evidence

Sources reviewed for this page

Primary technical guidance is preferred. A source supports the scope stated here; it does not imply that every possible cause is covered.

Related authority records

Continue with the same failing system

These links share the same component or repair context; they are not generic keyword suggestions.

Error0x80070002 — Windows Update error 0x80070002: what it means and what to try first

Microsoft groups 0x80070002 among update install failures; preserve the context before using broader repair steps.

Error0x80073712 — Windows Update error 0x80073712: component store inconsistent

Microsoft maps 0x80073712 to ERROR_SXS_COMPONENT_STORE_CORRUPT in the Windows servicing context.

Error0x800F081F — Windows Update error 0x800F081F: repair source missing

In Microsoft’s servicing guidance, 0x800F081F maps to CBS_E_SOURCE_MISSING and calls for component-store repair or a valid matching source.

Error0x800F0831 — Windows Update error 0x800F0831: CBS store corruption

Microsoft classifies 0x800F0831 as CBS_E_STORE_CORRUPTION and directs troubleshooting toward component-store repair.

GuideWindows 11 update not installing: troubleshoot from simple checks to repair tools

A conservative sequence for Windows Update failures before resetting update components.

Windows updateKB5120998 — August 27, 2026 Windows 11 preview update

An optional preview cumulative update that later appeared in release-health history for desktop-background and mouse-personalization regressions on affected systems.