0x800f0831

What it means

Corruption in the Windows component store. In practice this often means a manifest for an update that was installed previously is missing, so the servicing stack cannot work out the chain it needs to apply the current update.

Real causes

• Component store corruption.
• A previous update was partially installed and left the store in an inconsistent state.

What to do

1. Run Dism.exe /Online /Cleanup-Image /RestoreHealth, then Sfc.exe /Scannow, then restart.
2. Open %windir%\Logs\CBS\CBS.log and search for the KB number named in the failure. The log usually names the specific missing manifest.
3. If the log names a specific missing update, install that update first, then retry the one that failed.

Where to look

• %windir%\Logs\CBS\CBS.log

Checked against Microsoft documentation. Last reviewed 2026-08-20.

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