KEH-TECH

0x800f081f

What an error code means and how to fix it: Exchange, Entra sign-in, Windows Update, printing and more.

How to use it Paste an error code or part of the message into the box, such as 0x80070002 or 5.7.1, and pick a result to see what it means and how to fix it.

Windows Update Windows Update Needs an admin

0x800f081f: Windows Update source files are missing (component store corruption)

Likely causes

  • Corruption in the Windows component store (WinSxS).
  • A partly installed update left components in a broken state.
  • Installing a feature (such as .NET Framework 3.5) with no reachable source.

How to fix it

  1. Open Command Prompt as administrator.
  2. Run Dism.exe /Online /Cleanup-Image /RestoreHealth and let it finish.
  3. Run Sfc.exe /Scannow.
  4. Restart the device and try the update again.
  5. If DISM can’t reach Windows Update (for example on a WSUS-managed device), it may need a repair source from matching Windows installation media. Ask your admin.

Checked against: learn.microsoft.com, learn.microsoft.com

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