Ultimate Windows Update Recovery Script 2026 by RoC-42 (GPL v3)
Credits to Manuel F. Gil und Shawn Brink whose work has been the foundation of my efforts.
This script serves one purpose: fixing situations where Windows Update under Windows 11 x64 25H2 has become dysfunctional - and there is a good chance that this happens from time to time. The trigger for this project was the recent Windows Update Issue, where installation of KB5086672, KB5079473 would terminate (Installation Error 0x80070306).
After messing around for over 8 hours in total, I finally found that doing an Inplace-Upgrade is more efficient (~30 mins vs. >60mins for UWUR), but if one prefers not doing that, this script can help.
The script starts with deleting VSS shadow copies of files, and all existing restore points, then creates one new restore point in case something goes wrong. The script then processes a list of 10 steps, before each of which it will ask the user whether to proceed the next step, skip the next step, or cancel the script entirely.
USE AT YOUR OWN RISK. UWUR operates deep under the hood of Win 11 and there is a chance of compromising your install up to the point where your machine wouldn't boot up anymore. I myself however did not experience any issues so far.
FUNCTIONAL REMARKS
- Script requires Admin Rights.
- This script has in some respects been tailored to Win 11 x64 25H2. It may run on older versions as well, but there is a chance of missing some files and registry keys.
- Execution duration of the script depends on state of the Win 11 install. Usually, it should take around 20-40 mins.
- Script triggers a chkdsk scan after the final reboot. The chkdsk scan can take up to 3h in extreme cases or on slow machines.
CREDITS
- Shawn Brink
- Manuel F. Gil
- computerbase.de/forum/Sebbi
- computerbase.de/forum/BFF
- computerbase.de/forum/bezelbube
- computerbase.de/forum/PC295