Session Windowsupdatetracelog Failed To Start With The Following Error 0xc0000035 Online

This document explains what the error means, why it happens, and gives a clear, step-by-step plan to fix it. It’s written for Windows system administrators and power users who want a fast, practical resolution with optional diagnostics and prevention tips.

The most common causes are:

Windows utilizes a technology called Event Tracing for Windows (ETW) to log system activities. ETW is a high-performance, efficient tracing system that allows the OS to write logs without significantly impacting performance. This document explains what the error means, why

The WindowsUpdateTracelog is a specific ETW session dedicated to recording the activities of the Windows Update client. When your computer checks for updates, downloads a patch, or installs a driver, this session is supposed to record the details so that technicians can troubleshoot failures later.

Open an elevated Command Prompt and run: Windows utilizes a technology called Event Tracing for

logman query -ets

Look for any session named WindowsUpdateTraceLog. If present but not functioning, it may be a stale session.

A simple restart often clears stuck trace sessions. After rebooting, retry the operation that caused the error. Look for any session named WindowsUpdateTraceLog

Once you have resolved the error, take these preventative measures: