The concept of a "collision" in software terms is akin to two people trying to sit in the same single seat simultaneously. If the WindowsUpdateTracelog session is already active—even if it is in a stalled, background, or "zombie" state—and another process attempts to initialize a new session with the same identifier, the kernel rejects the request. It rejects it not because the request is malformed, but because the namespace is already occupied. Therefore, the error does not necessarily imply that the tracing system is broken; rather, it suggests a conflict in the initialization sequence, where the system is trying to start something that the environment suggests is already started.
If none of the above work:
: Some users resolve the persistent trace log error by navigating to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\WMI\AutoLogger\EventLog-System and setting the Enabled and EnableProperty values to 0 . Note: Always back up your registry before making changes.
Double-click and change its value data from 1 (Enabled) to 0 (Disabled). The concept of a "collision" in software terms
If the error is causing no functional problems and you just want to stop the event from appearing in the logs, you can disable it.
: Open Command Prompt as an administrator and run these two commands to fix potential system file corruption: sfc /scannow DISM /Online /Cleanup-Image /RestoreHealth
The error code 0xc0000035 translates to STATUS_OBJECT_NAME_COLLISION. In the context of Windows Update Tracelog, this means the operating system is trying to start a new logging session using a name that is already in use by an active or "ghost" process. Essentially, Windows is trying to open a door that is already occupied. Common Causes of the Conflict Therefore, the error does not necessarily imply that
Execute the Deployment Image Servicing and Management tool first: DISM.exe /Online /Cleanup-image /Restorehealth Use code with caution. Once completed, run the System File Checker: sfc /scannow Use code with caution. Restart your system after the verification finishes. Special Consideration for Custom "Repacks"
If the error persists because the system thinks a session is already running, you must clear the ETW state. This is done via the command line (Admin privileges):
user wants a long article about the error "session windowsupdatetracelog failed to start with the following error 0xc0000035 repack". I need to provide comprehensive information: what the error is, its causes, solutions, and related context. To do this thoroughly, I need to gather information from multiple sources. I will start by performing a set of searches to cover the different aspects of this error. search results have provided several potentially relevant pages. To gather comprehensive information for the article, I need to open these pages and extract key details about the error's meaning, causes, and solutions. I will open multiple pages in parallel. search results provide a substantial amount of information. To ensure the article is comprehensive, I will also search for general solutions for Windows Update errors and specifically for error 0xc0000035. search results are sufficient. I will now structure the article based on the gathered information. The article will include an introduction, an explanation of the error, its causes, troubleshooting steps, a discussion on repack implications, and a conclusion. I will cite the relevant sources. "Session 'WindowsUpdate_Trace_Log' failed to start" error message in Windows can be alarming, especially when accompanied by the specific error code . For IT professionals and power users, this problem often emerges in complex scenarios, including repackaged deployments of Windows. This guide provides a detailed examination of this error, its root causes, and a systematic approach to resolution, with a specific focus on its implications in repack environments. Double-click and change its value data from 1
If you are seeing this error, it typically indicates that a system tracing session (often related to Windows Update or Microsoft-Windows-Remediation) is attempting to start, but encounters a "Name Collision" error ( 0xC00000350 x cap C 0000035
If you notice system slowdowns or want to clear the error, try these steps: Troubleshoot problems updating Windows - Microsoft Support
= STATUS_OBJECT_NAME_COLLISION ), meaning the session name already exists or the log file is being accessed simultaneously by another process.