that does not stop actual security updates from being installed. Microsoft Learn Are you experiencing failed updates
I'll search for information on this specific error. search results show several relevant Microsoft Q&A threads. I'll open them to gather detailed information.'ll also search for "RUXIM" in general.'ll also search for "microsoftwindowswindowsupdateruximlog" as a continuous string to see if there are any specific mentions.'ll also search for "RUXIM log failed to start" to find more discussions.'ll open result 0 from search 19.'ll also search for "RUXIMICS.exe" to understand RUXIM better., I have enough information to write a comprehensive article. I'll structure it with an introduction explaining the error, what RUXIM is, what causes the error, how to check if it's a problem, and several troubleshooting methods. The user's question is about writing an article, so I'll format it accordingly. I'll also include relevant citations from the sources. Understanding and Fixing the "Session 'Microsoft.Windows.WindowsUpdate.RUXIMLog' Failed to Start" Error in Windows
End of report.
: A known bug in this specific Windows Update health binary frequently triggers this error. microsoftwindowswindowsupdateruximlog failed to start full
To understand the fix, it helps to understand what is breaking:
(often Event ID 2) typically occurs after Windows updates, such as KB5001716, which introduce the Reusable User Experience Interaction Manager (RUXIM) Microsoft Learn
When Windows attempts to initialize an Event Trace Log (ETL) session for RUXIM while a previous process is still holding onto that exact identifier, the kernel generates in the Event Viewer, stating that the session failed to start fully. Key Causes that does not stop actual security updates from
By following these steps, users should be able to resolve the "Microsoft Windows Windows Update RUXIM log failed to start full" error and ensure that Windows Update functions properly.
Return to the Command Prompt and restart the services by executing: net start wuauserv net start bits net start cryptsvc Use code with caution. Method 4: Uninstall Microsoft Update Health Tools
Search for Microsoft Update Health Tools . I'll open them to gather detailed information
Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\WMI\Autologger
By following the steps outlined in this article and seeking additional help when needed, you can resolve the "WindowsUpdateRuximLog failed to start" error and ensure that your Windows system runs smoothly and efficiently.
May 2026 Applies to: Windows 10, Windows 11, Windows Server 2019/2022
Open your system (Windows Key + I) and select Apps / Installed Apps . Search the list for Microsoft Update Health Tools .