If the error persists, deleting the specific log session key can force Windows to recreate it cleanly. Registry Editor Navigate to:
Note: ProgramData is a hidden folder. Type the path directly into the address bar if you cannot see it. Search for a file containing UXIMLog or related .etl files. the file (e.g., to UXIMLog_OLD.etl ) or delete it.
May 2026 Applies to: Windows 10, Windows 11, Windows Server 2019/2022 microsoftwindowswindowsupdateruximlog failed to start full
If your computer is performing normally, you can safely ignore this log entry. However, if you are experiencing Windows Update failures, follow these steps: This is the fastest way to reset minor service glitches.
For those who cannot abide the red "X" in Event Viewer, a few community-sourced fixes have emerged: If the error persists, deleting the specific log
) and can sometimes be safely ignored if you aren't experiencing other system crashes. Check Update Health Tools
: If the component is trying to run a campaign that is no longer valid for your system. How to resolve it Search for a file containing UXIMLog or related
Open > Apps > Installed apps (or "Apps & Features"). Search for Microsoft Update Health Tools . Click it and select Uninstall . Restart your computer .
Once finished, type DISM /Online /Cleanup-Image /RestoreHealth and press . 4. Reinstall the Specific Update (KB5001716)
If your computer is functioning normally, this error can often be , as it typically reflects a temporary conflict during a background update process. However, to clear the error, try these steps: Delete the RUXIMLog Registry Key : Press Win + R , type regedit , and hit Enter.