Windows 11 users trying to escape the buggy KB5074109 update are running into a new problem: the uninstall process itself is failing with error 0x800f0905. Instead of rolling back cleanly, Windows throws another roadblock, leaving people stuck between a broken update and a broken uninstall tool. If you’re hitting the same dead end, there are a few troubleshooting steps that can actually get the rollback moving again.
To refresh, on Windows 11, the January 2026 Security Update (KB5074109) has been causing tons of issues, from performance issues to broken features, and even after Microsoft openly told people to uninstall the update, some users are now even noticing the 0x800F0905 error when trying to remove the buggy update.
If you opted to uninstall the "2026-01 Security Update (KB5074109) (26200.7623)" and you're seeing the 0x800F0905 error, it usually points to a servicing stack or component store issue.
Although you can try a number of troubleshooting steps, among the best options is using the System Restore feature to undo the update and revert to a previous, working state. Alternatively, even though it's not practical, you could try the Reinstall through Windows Update option to let the system resolve the issue, then uninstall the update again.
In this how-to guide, I'll outline two possible fixes for the 0x800F0905 error to allow you uninstall the KB5074109 update.
Warning: While these options are not destructive, it's recommended that you create a full backup of your computer before proceeding. You have been warned.
How to rollback to a previous working state using System Restore
This option will only work if System Restore was previously enabled on the computer and you created a restore point, either manually or automatically.
To rollback and remove the KB5074109 update from Windows 11 using System Restore, use these steps:
- Open Start.
- Search for Create a restore point, and click the top result to open the System Properties page.
- Click the System Restore button.
- Click the Next button.
- Select the restore point dated before KB5074109 was installed on the computer.
- (Optional) Click the "Scan for affected programs" button to view the apps that will be removed through this process.
- Click the Next button.
- Click the Finish button.
Once you complete the steps, the restore point will apply, returning the device to the previous good working state before the update was installed. If one or more apps are affected, you will have to reinstall them manually.
If this method worked, it's a good idea to disable Windows Update at least temporarily.
How to repair current setup using Windows Update on Windows 11
Alternatively, you can perform a system repair using the "Fix problems using Windows Update" feature. This option will reinstall the operating system while keeping your apps, files, and settings. Once the reinstallation is complete, give it some time, then try uninstalling the buggy update again.
To repair the Windows 11 setup to resolve the 0x800F0905 error, use these steps:
- Open Settings.
- Click on System.
- Click the Recovery page on the right side.
- Click the Reinstall now button for the "Fix problems using Windows Update" setting.
- Check the "Automatically restart my PC 15 minutes after installation" option.
- Click the OK button.
After you complete the steps, Windows 11 will be reinstalled with the same version already installed on the computer, and you can now proceed to remove the buggy update.
Until Microsoft issues a proper fix, these workarounds are the best shot at removing KB5074109 without hitting error 0x800f0905. Windows Update issues aren’t new, but when even the uninstall path breaks, it’s especially frustrating.
If you’ve found a different method that worked for you, sharing it in the comments could help others dealing with the same update headache.
More resources
For more helpful articles, coverage, and answers to common questions about Windows 10 and Windows 11, visit the following resources:
- Windows 11 on Windows Central — All you need to know
- Windows 10 on Windows Central — All you need to know
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