Microsoft Resolves Windows 11 May Patch Tuesday Install Glitches

Just a few weeks ago, we highlighted a frustrating glitch that prevented many users from installing May’s Patch Tuesday updates (KB5089549) on Windows 11. The error surfaced under specific conditions, yet it notably affected both the 24H2 and 25H2 releases of the operating system.

Microsoft has now confirmed that the problem has been fixed.

The fix is straightforward: users simply need to apply the non‑security preview update KB5089573, which was rolled out a few days ago. Once installed, the previous installation failures should disappear without any additional steps.

This development should bring considerable relief to affected Windows 11 users, who previously had to resort to risky workarounds such as editing the Windows Registry or executing a Known Issue Rollback (KIR). Both methods carry significant risks, especially for less experienced users.

Before the new patch, affected devices would display error code 0x800f0922 during the May update installation, typically when the reboot phase reached the 35‑36% mark. The vague message, “Something didn’t go as planned. Undoing changes,” would simply roll back the update. Microsoft identified that this failure occurred on systems with 10 MB or less of free space on the EFI System Partition (ESP).