The error "microsoftwindowswindowsupdateruximlog failed to start patched" typically appears in Windows Event Viewer or system logs when the Update User Experience (UX) Integration Manager fails to initialize because it has been modified or "patched" by a third-party tool. Understanding the Error
Failed to Start: The kernel could not initialize the session, often because of a 0xC0000035 (Object Name Collision) error, meaning a session with that name is already running or a file is locked.
For persistent errors that won't go away, use the Microsoft SetupDiag tool to analyze your update logs. Download SetupDiag.exe from the official Microsoft site. Run the tool to generate a SetupDiagResults.log file.
Corruption in the Windows Update database or system files is the most frequent cause of this failure. Fix Windows Update corruptions and installation failures
1. Restart Windows Update Service
- Press
Windows key + R, typeservices.msc, and press Enter. - Scroll down and find the
Windows Updateservice. - Right-click it and select
Restartif available. If it's not running, selectStart.
Option 1: Run System File Checker (SFC) This will check for corrupted system files and repair them.
