Windows 11 Users Encounter New Bug When Uninstalling KB5074109 Update

Published on January 25, 2026 | Translated from Spanish
Screenshot showing error 0x800f0905 in Windows Update when trying to uninstall a security update in Windows 11.

Windows 11 Users Find a New Error When Uninstalling Update KB5074109

Those using Windows 11 and seeking to resolve issues by removing the KB5074109 update face a new obstacle. The uninstall attempt fails repeatedly, displaying the error code 0x800f0905. This blockage prevents reverting the changes and can lead to a system with stability issues. 🚫

The 0x800f0905 Code Prevents Reverting the Update

This specific error usually occurs when the update files are damaged or when the operating system cannot access the necessary source resources to undo the installation. Although it is not unique to this patch, its appearance worsens an already complicated situation for many users. The KB5074109 update has been associated with multiple reports of low performance and instability since it was released.

Possible Causes of the Failure:
  • Corrupted or incomplete update files.
  • Permission or access issues to the system's source files.
  • Conflicts with other updates or installed software.
It seems Microsoft wants you to integrate their updates, flaws and all, with the same insistence as a feline demands belly scratches: it seems pleasurable until the claws come out.

Procedure to Resolve the Error and Uninstall

The documented guide suggests using the built-in Windows tool to troubleshoot update issues. The method involves a sequence of steps designed to repair the affected system components.

Steps to Follow to Try to Fix the Problem:
  • Run the update troubleshooter from System Settings, within the Update and Security section.
  • If the above doesn't work, open Command Prompt as administrator and use the command: DISM /Online /Cleanup-Image /RestoreHealth.
  • Then, in the same window, run the command: sfc /scannow to verify the integrity of system files.
  • Finally, restart the computer and try again to remove the update from the Windows update history.

Conclusion on the Issue

Encountering the 0x800f0905 error when trying to uninstall a problematic update adds an extra layer of frustration for users. Following the system repair steps can restore functionality to revert unwanted changes. It is crucial to address these failures with the appropriate tools to keep the operating system stable and functional. 🔧