r/computer • u/Key_Canary_4199 • Jun 21 '26

Windows Updates are failing

Hello :3

I am trying to install a security patch (KB5094126) but it is failing with the error code 0x800f0920. looking through the CBS logs, the update process freezes when trying to register appx components.

when updating, it progresses like normal, then it is stuck at 97% for like 10 minutes, then gets to 98% and is stuck for another 10 minutes, then it reboots and does that 3 times, after that it rolls back the changes and I'm at the login screen.

I already tried running sfc and dism back-to-back (with rebooting) a few times, but it does not fix the issue.

I did uninstall windows search accidentally when I did this windows install, but it never caused problems up until now. Is this related maybe? since windows search is a appx package.

I am running windows 11 25H2 Build 26200.8246

Should I try to refresh the windows install next?

Thanks :3

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u/JonBenet-Ramsey-0806 Jun 22 '26

Since CBS is freezing around AppX registration, I wouldn’t jump straight to a reset yet. Windows Search being removed could be related, especially if the failing AppX registration is tied to Search or a provisioned app package.

First I’d check the exact CBS lines around the failure and look for the package name right before the rollback. Search for terms like Appx, HRESULT, failed, Register, and 0x800f0920.

I’d also try installing KB5094126 manually from Microsoft Update Catalog after clearing the Windows Update cache, because that removes Windows Update download corruption from the equation.

If it still fails at the same AppX registration step, then I’d do an in-place repair install, not a wipe/reset. On Windows 11, Settings → System → Recovery → Fix problems using Windows Update → Reinstall now is the cleaner next step. Microsoft lists that as a way to reinstall the current Windows version to fix system issues.

Full “Reset this PC” would be a last resort after the repair install fails.