Session Windowsupdatetracelog Failed To Start With The Following Error 0xc0000035 Jun 2026

The WindowsUpdateTraceLog is often used by diagnostic tools or scripts that companies use to monitor fleet computers. If you are a home user, this error is mostly "noise." It fills up your Event Viewer logs but rarely stops you from installing security updates or playing games.

Delete the contents of the RtBackup folder and restart your PC. Windows will recreate these files cleanly upon reboot. 3. Restart the Windows Update Services Sometimes the service responsible for the trace is hung. The WindowsUpdateTraceLog is often used by diagnostic tools

By systematically applying the solutions above—starting with logman stop to kill dead ETW sessions, clearing log file corruption, resetting Windows Update components, or performing an in-place upgrade—you can eliminate this error permanently. clearing log file corruption