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

Most likely, no. The error indicates a failed logging operation, which is usually a minor issue. It should only be a serious concern if you are also experiencing system instability, blue screens, or consistent failures to install Windows Updates.

In the context of this error, “repack” refers to a custom Windows image — for example, a modified .wim or .esd file created with tools like NTLite, MSMG Toolkit, or DISM. Repacking often involves removing components, integrating updates, or altering services. This process commonly triggers the error.

Use the logman utility to identify and stop any duplicate sessions that are causing the collision. Open as an administrator. Most likely, no

This is the most common fix, which stops the system from trying to launch the failing logger session. Press Win + R , type regedit , and hit Enter.

If you see WindowsUpdateTracelog or similar listed, stop it by typing: logman stop "WindowsUpdateTracelog" -ets 2. Repair System Files In the context of this error, “repack” refers

To fix a problem, you must first understand it. The code 0xC0000035 is a hexadecimal (computer-readable) error code. When translated, it corresponds to STATUS_OBJECT_NAME_NOT_FOUND . In plain English, this means that a specific program or process (in this case, the Windows Update tracing service) attempted to access a data object—like a system file, a registry key, or a configuration setting—but the system could not locate it.

Unless you are actively troubleshooting a failed Windows Update with Microsoft support and need those specific trace logs, you can safely ignore this Event Viewer error or use to stop it from cluttering your administrative logs. Use the logman utility to identify and stop

Not if you plan to sysprep or deploy widely. The collision can prevent future Windows Updates and cause system file checker (SFC) hiccups.