Session Windowsupdatetracelog Failed To Start With The Following Error 0xc0000035 Repack Guide

This paper analyzes the Windows event indicating "Session WindowsUpdateTraceLog failed to start with the following error 0xc0000035 repack". It examines root causes, diagnostic steps, and remediation approaches, and provides a reproducible troubleshooting workflow and preventive recommendations.

This error typically appears in or during system repairs (e.g., using DISM or SFC), especially after a Windows update fails or a system image corruption occurs. The error code 0xc0000035 means STATUS_OBJECT_NAME_COLLISION – essentially, a duplicate object name exists (e.g., two processes trying to use the same log session name). This paper analyzes the Windows event indicating "Session

Open Command Prompt (Admin) and type: logman query to list active sessions. Find the session named (or similar). and remediation approaches