Session Windowsupdatetracelog Failed To Start With The Following Error 0xc0000035

The WindowsUpdateTracelog 0xc0000035 error is an administrative nuisance rather than a critical system failure. Deleting or disabling the specific autologger entry via the registry or Performance Monitor stops the naming collision immediately, cleaning up your Event Viewer logs without impacting your system's ability to receive updates. To help narrow down the best solution, let me know:

Execute the Deployment Image Servicing and Management scan first: DISM.exe /Online /Cleanup-image /Restorehealth Use code with caution.

Before modifying system files, allow the built-in Windows diagnostic tool to reset the update components and clear conflicting trace hooks. Press Windows Key + I to open . Navigate to System > Troubleshoot > Other troubleshooters . Locate Windows Update and click the Run button. Before modifying system files, allow the built-in Windows

Navigate to the following path using the left sidebar: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\WMI\Autologger\WindowsUpdateTracelog Look for a DWORD value named in the right-hand pane.

As he opened the Event Viewer on the laptop, he noticed a peculiar error message: "session windowsupdatetracelog failed to start with the following error 0xc0000035". John's curiosity was piqued. He had seen some weird errors in his time, but this one was new. Locate Windows Update and click the Run button

Type the following command to stop the trace session: logman stop -ets WindowsUpdateTraceLog (If you get an error that the session does not exist, that is fine; proceed to the next step).

Type cmd in your Start menu, right-click it, and select . In the context of WindowsUpdateTraceLog

logman query

In plain English, this means the system tried to create or start an object (in this case, a log file or a trace session), but an object with that name already exists, or the system believes it is already active. It is the computer equivalent of trying to create a new folder named "New Folder" when a folder with that exact name is already sitting right there on your desktop.

In the context of WindowsUpdateTraceLog , Windows tries to start an event‑tracking session for update diagnostics, but that session (or a component with the same name) is already active. The collision prevents the second instance from starting, but the first one continues running normally, so the overall health of your system remains unaffected.

Here is what typically happens in the background: