Session Windowsupdatetracelog Failed To Start With The Following Error 0xc0000035 Repack [2021] 〈HIGH-QUALITY • 2026〉

If you’ve been digging through your Windows Event Viewer and spotted the error message

Press Win + S , type , right-click Command Prompt , and choose Run as Administrator .

user wants a detailed article about the error "session windowsupdatetracelog failed to start with the following error 0xc0000035 repack". I need to gather comprehensive information. I'll search for this specific error message and related topics. search results show several relevant links. I should open them to gather details. have gathered information from various sources. I will now structure a comprehensive article. The article will include an introduction, an explanation of the error, its causes, step-by-step solutions, advanced fixes, and a FAQ section. I will cite the relevant sources. is a relatively common, yet often perplexing, Windows error that can appear in the Event Viewer for users across recent versions of Windows 10 and 11. Its full message, Session "WindowsUpdate_trace_log" failed to start with the following error: 0xC0000035 , specifically flags a problem with a logging session tied to Windows Update.

Even if the error seems minor, it often accompanies: If you’ve been digging through your Windows Event

This means that the Event Trace Session manager tried to create a new logging session using a specific name or memory allocation, but an existing session or temporary file was already using that exact identity. Because two things cannot occupy the same namespace simultaneously, the system aborts the process and logs the error.

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FeatureManagement\Overrides\8\3000950414] "EnabledState"=dword:00000001 "EnabledStateOptions"=dword:00000000 "Variant"=dword:00000000 "VariantPayload"=dword:00000000

Two system processes attempt to call the ETW infrastructure at the exact same millisecond. I'll search for this specific error message and

How to Fix "Session WindowsUpdateTracelog Failed to Start with the Following Error: 0xc0000035"

Encountering the Session "WindowsUpdate_trace_log" failed to start with the following error: 0xC0000035 message can be alarming, but as this guide shows, it's a problem that is almost always solvable. In many cases, it can be resolved with a simple system reboot or by running the Windows Update troubleshooter. For more persistent issues, targeted fixes like clearing the SoftwareDistribution folder or editing the registry are highly effective.

By following these solutions and taking preventative measures, you should be able to resolve the "Session Windows Update Trace Log failed to start with the following error: 0xc0000035" issue related to repackaged software or drivers. If the problem persists, consider seeking further assistance from Microsoft support or a qualified IT professional. have gathered information from various sources

If the error persists but your system updates are installing correctly, Microsoft support specialists often suggest it is a known timing issue that does not require further action.

: Use the Windows Services Manager ( services.msc ) to find the Windows Update service, right-click it, and select Restart .

The error 0xc0000035 during a repack indicates a conflict over the WindowsUpdateTraceLog ETW session. It is rarely

If the "repack" or tracing session is stuck due to corrupted temporary update files, clearing the cache often helps. learn.microsoft.com Stop the Windows Update service (see Step 1). Navigate to C:\Windows\SoftwareDistribution and delete all files and folders inside. Restart the Windows Update service or reboot your PC. learn.microsoft.com 4. Registry Adjustment (Advanced)

Below is a blog-style guide on understanding and resolving this issue.