Fix: Session "WindowsUpdateTracelog" failed to start with error 0xc0000035
Before diving into settings, perform a full restart. Not a "Shutdown" (which often uses Fast Startup and saves the kernel state), but a . This forces Windows to kill all active tracing sessions and start fresh. 2. Flush the ETW Logs Windows will recreate these files cleanly upon reboot
If you are digging through your Windows Event Viewer and keep seeing with the error message "Session 'WindowsUpdateTracelog' failed to start with the following error: 0xc0000035," you aren't alone. Are you seeing this error alongside
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. you can manage the session directly:
Are you seeing this error alongside , or is it just appearing in your Event Viewer ?
Type the following commands one by one, hitting Enter after each: net stop wuauserv net stop bits Wait a few seconds, then restart them: net start wuauserv net start bits 4. Check for Circular Logging Conflicts If you are tech-savvy, you can manage the session directly: