Usually, . If your computer is running smoothly and Windows Updates are installing correctly, this is often just "log noise." However, if it’s cluttering your Event Viewer or you’re having trouble updating Windows, you should address it. How to Fix It 1. The "Clean Slate" Reboot

Are you seeing this error alongside , or is it just appearing in your Event Viewer ?

In plain English: Windows is trying to start a tracing session (a log that tracks what Windows Update is doing), but it’s hitting a snag because a session with that same name or ID is already running or wasn't shut down properly. It’s like trying to save a file in a folder where a file with that exact name is already open. Is This Critical?

The error code 0xc0000035 stands for STATUS_OBJECT_NAME_COLLISION .

Delete the contents of the RtBackup folder and restart your PC. Windows will recreate these files cleanly upon reboot. 3. Restart the Windows Update Services Sometimes the service responsible for the trace is hung.

The 0xc0000035 error is rarely a "system killer." It’s a minor conflict in how Windows tracks its own update progress. By clearing the folder or restarting the update services, you usually tell Windows to stop overthinking and start the log fresh.

Search for in the Start menu and open it. Expand Data Collector Sets on the left. Click on Startup Event Trace Sessions . Locate WindowsUpdateTracelog in the list. Right-click it and select Properties .

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