Session Windowsupdate_trace_log Failed To Start With The Following Error: 0xc0000035

Multiple services hitting the log at once.

Windows Update utilizes the Event Tracing for Windows (ETW) infrastructure to log diagnostic information regarding the detection, download, and installation of updates. The specific session mentioned, WindowsUpdate_trace_log , is a real-time or file-based trace session initiated by the Windows Update Agent (WUA). Multiple services hitting the log at once

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 Multiple services hitting the log at once

If the error persists, the update repository itself may be corrupted. Multiple services hitting the log at once