Microsoft Releases Important Windows 11 Patch to Fix Update Installation Problems

Microsoft has released a new Windows 11 update, KB5089573, to address installation issues that troubled many users during the May 2026 Patch Tuesday release. The update is available for Windows 11 versions 24H2 and 25H2 and mostly addresses the distracting installation error 0x800f0922.

Many users reported that the prior security update failed to install, particularly on computers with limited space in the EFI System Partition (ESP). Devices with less than 10MB of free space frequently get stuck during reboot at approximately 35-36% progress, resulting in failed updates and incomplete installations.

According to Microsoft, KB5089573 resolves the installation issue permanently, eliminating the need for previously proposed temporary workarounds. Before providing this update, Microsoft provided solutions including as Known Issue Rollback (KIR), registry adjustments for enterprise systems, and manual configuration fixes to assist affected users. With the most recent cumulative update, users no longer require these temporary solutions since the problem has been entirely fixed.

Along with fixing installation issues, Microsoft has made various enhancements in the most recent version. KB5089573 includes improved AI components for features such as image search and semantic analysis, additional personalization improvements for compatible devices, and the Servicing Stack Update (SSU) KB5092734, which improves update reliability. Microsoft has also enhanced the update installation process, making future updates more stable. However, the company claims that some features will be rolled out gradually, so not all users will receive them right away.

The update may not automatically appear for every user immediately. Users can manually check for it by following these steps: Start → Settings → Windows Update → Advanced Options → Optional Updates. The update should appear under the optional updates section.

IT administrators can also install the update using Windows Update for Business, Microsoft Update Catalog and Windows Server Update Services (WSUS).

Microsoft states that the included Servicing Stack Update cannot be removed individually after installation. Users who want to uninstall the update may require specialized command-line tools rather than traditional removal techniques. The business presently reports no noted issues with KB5089573, which is good news amid the problems caused by last month's update deployment.

Users who are experiencing unsuccessful Windows updates, installation loops, or error 0x800f0922 are recommended to install KB5089573 promptly. The update restores normal update capabilities, enhances security patch installation, and ensures that Windows 11 devices are secure and stable.

This article is based on information from Cyber Press