What is WU-0x800f081f-2?
WU-0x800f081f is a high-severity Windows operating system problem. The source files required for the Windows Update package could not be found, causing installation failure (often occurs during DISM deployment tasks or .NET Framework 3.5 updates). Work through the steps below in order.
Common Causes
- Missing or corrupted component files inside the local Windows Component Store (WinSxS folder).
- Corrupt registry keys or update transaction logs blocking Windows Update components.
- Missing access to clean Windows installation media when installing offline features.
Step-by-Step Fix Guide
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1
Run the DISM RestoreHealth command to download clean system file copies from Windows Update.
If earlier steps didn't help, "Run the DISM RestoreHealth command to download clean system file copies from Windows Update." directly addresses missing or corrupted component files inside the local Windows Component Store (WinSxS folder).
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2
Run the System File Checker (sfc /scannow) utility to scan and repair corrupted files.
"Run the System File Checker (sfc /scannow) utility to scan and repair corrupted files." is worth trying when missing or corrupted component files inside the local Windows Component Store (WinSxS folder) turns out to be the culprit.
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3
Reset Windows Update components by purging the SoftwareDistribution folder cache.
"Reset Windows Update components by purging the SoftwareDistribution folder cache." targets missing or corrupted component files inside the local Windows Component Store (WinSxS folder), one of the documented causes of WU-0x800f081f-2.
Commands & Diagnostics
DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannow
Frequently Asked Questions
Missing or corrupted component files inside the local Windows Component Store (WinSxS folder) accounts for the majority of WU-0x800f081f-2 reports; corrupt registry keys or update transaction logs blocking Windows Update components and missing access to clean Windows installation media when installing offline features come up less often but are documented.
Most WU-0x800f081f-2 reports resolve after "Run the DISM RestoreHealth command to download clean system file copies from Windows Update". The rest of the guide above is there for the cases that don't.
WU-0x800f081f-2 is a high-severity error. It won't damage your PC instantly, but repeated occurrences usually point to a deeper problem worth addressing soon.
In most cases, yes — the guide above resolves WU-0x800f081f-2 without a clean install. Treat a reinstall as the last resort, not the first move.
Sometimes. Microsoft regularly releases patches that fix known BSOD triggers including WU-0x800f081f-2. Make sure Windows is fully up to date via Settings → Windows Update before attempting more advanced fixes.
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