Before you begin
Save open work and back up important files. Use instructions for your exact device and software version. If Windows cannot start, see the startup guide.
Work through these checks
0 of 3 complete01Stop Windows Update services, delete download cache files, and trigger a manual update scan.
- Stop Windows Update services, delete download cache files, and trigger a manual update scan.
What to expect
Check whether the original symptom still occurs.
If it does not helpContinue only if this check applies to your device. Consult its manufacturer if you are unsure.
02Create or modify the AllowOSUpgrade registry key to force Windows upgrade paths.
- Create or modify the AllowOSUpgrade registry key to force Windows upgrade paths.
What to expect
Check whether the original symptom still occurs.
If it does not helpContinue only if this check applies to your device. Consult its manufacturer if you are unsure.
03Run the Windows Update Troubleshooter to clear registry lock flags.
- Run the Windows Update Troubleshooter to clear registry lock flags.
What to expect
Check whether the original symptom still occurs.
If it does not helpContinue only if this check applies to your device. Consult its manufacturer if you are unsure.
Possible causes
- Active registry parameters restricting or delaying Windows OS updates.
- Incomplete download sessions leaving corrupt metadata tags in the SoftwareDistribution folder.
- Conflicting background installation services locking the update database.
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