Session Windowsupdate_trace_log Failed To Start With The Following Error: 0xc0000035 [verified] Online

Here’s what’s likely happening and how to fix it: The Windows Update trace log session is already running, or its log file is locked/in use, or there’s a leftover registry entry from a previous session. How to fix: 1. Stop the existing trace session (Run as Administrator) logman stop windowsupdate_trace_log 2. Delete the trace session (if it exists) logman delete windowsupdate_trace_log 3. Clear Windows Update logs net stop wuauserv net stop bits del /f /q %SystemRoot%\Logs\WindowsUpdate\*.etl del /f /q %SystemRoot%\Logs\WindowsUpdate\*.old net start bits net start wuauserv 4. Check for orphaned registry entries Navigate to:

sfc /scannow

However, for a failing to start, 0xc0000035 often corresponds to STATUS_OBJECT_NAME_COLLISION (from NTSTATUS.h) – which means "Object name already exists" (a duplicate name). Here’s what’s likely happening and how to fix