0x800f081f: Windows Update source files are missing (component store corruption) – KEH-TECH

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x800f081f

Windows Update Windows Update Needs an admin

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

What it means: Windows couldn't find the source files it needs for the update or feature, usually because the component store is damaged.

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

Open Command Prompt as administrator.
Run Dism.exe /Online /Cleanup-Image /RestoreHealth and let it finish.
Run Sfc.exe /Scannow.
Restart the device and try the update again.
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

Related codes

0x80073712 A file Windows Update needs is likely damaged or missing.
0x800f0922 The update failed to install: often the PC couldn't reach the Windows Update servers, or the System Reserved partition is too full.
0x80070422 Windows Update can't run because its service is stopped or disabled.
0xC1900101 An error starting with 0xC1900101 means a Windows feature update or upgrade rolled back, usually because of a driver.

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