Windows 10 KB5003173, which is part of the May 2021 Patch Tuesday update cycle, is reportedly causing problems for some people, including what seems to be a nasty Microsoft Edge compatibility bug that trashes the Windows Update process itself, which means the updates would fail to install or rollback automatically.
KB5003173 is the cumulative update for the most recent version of Windows 10 – version 20H2 (released in October 2020) and version 2004 (released in May 2020).
When applying this month’s Patch Tuesday update, a lot of users noticed that the installation fails with a mysterious error message “0x800f0922” and Windows initiates automatic rollback. One affected user told us that the DISM approach didn’t work for them, but the update can be installed successfully when they reinstall Microsoft Edge.
Based on reports on Reddit, it looks like Windows 10 error 0x800f0922 is hitting devices where Microsoft Edge (Chromium) has been manually removed to restore the legacy Microsoft Edge.
When you install KB5003173, it also attempts to install the Chromium Edge. However, the update installation fails when it detects an empty Edge folder in the system drive (C:\Program Files (x86)\Microsoft\Edge\).
This can happen when the Microsoft Edge folder wasn’t removed properly.
How to fix 0x800f0922 error
Fortunately, there are two workarounds – manually reinstall Microsoft Edge from Microsoft’s website and retry the cumulative update installation. Or simply remove the Edge folder by navigating to C:\Program Files (x86)\Microsoft\.
This will allow the cumulative update to successfully restore the browser and the installation will proceed, as confirmed by affected users.
Unfortunately, there are cases where the update installation fails with different error messages each time and Microsoft Edge workaround doesn’t work.
Windows 10 update installation failure is always accompanied by an error message and that code may vary. Some users observed that update downloads and installation goes to 73% and then it fails with an unexpected error message.
If you are one of those having trouble when installing the latest updates, there’s no known workaround but you can try to repair the operating system using Media Creation Tool. You can also pause the update for now, and wait for the next batch of cumulative update, which is expected to land in the third or fourth week of the month.
It’s worth noting that KB5003173 applies security fixes to Windows 10 version 20H2 and version 2004, and it also fixes the high CPU usage bug, which was reported by some users.
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