Microsoftwindowswindowsupdateruximlog Failed To Start Patched Updated 〈TRUSTED ◆〉

How to Fix "Microsoft.Windows.WindowsUpdate.RUXIMLog Failed to Start"

The error message "Session 'Microsoft.Windows.WindowsUpdate.RUXIMLog' failed to start" is a common warning found in the Windows Event Viewer. While it often appears alongside update failures or system sluggishness, it specifically refers to the failure of a logging session for the Reusable UX Integration Manager (RUXIM), a component Windows uses to manage the user experience during updates.

If you see this error marked as "patched" or recurring after an update, it typically indicates a conflict between current system files and a recent patch. Below is a comprehensive guide to understanding and resolving this issue. Understanding the RUXIMLog Error How to Fix "Microsoft

The RUXIM component is responsible for "interaction campaigns"—essentially the notifications and interfaces that guide you through pending updates. When the RUXIMLog fails to start, it often triggers Error Code 0xC0000035 (Status Object Name Exists), meaning the system is trying to start a logging session that is already technically active or blocked by a corrupted file. Step 1: Run System Maintenance Tools

Corruption in the Windows Update database or system files is the most frequent cause of this failure. Fix Windows Update corruptions and installation failures Type Create a restore point in the search bar and open it

Here are some steps you can take to troubleshoot and potentially resolve this issue:

6. System Restore

If you started experiencing this issue recently, try restoring your system to a point when it was working correctly. aiding future troubleshooting.

1. Type Create a restore point in the search bar and open it.
2. Click on System Restore and follow the prompts.

8. Re-register DLL Files

If specific DLL files are not registered correctly, it can cause issues.

However, be cautious with manually re-registering DLLs, as this can cause more harm than good if not done correctly.

3. Targeted Repair Actions

If corruption is detected:

• Attempts to re-register the affected DLL/service using regsvr32 or dism / sfc.
• Downloads a fresh copy of the missing component from Microsoft servers (if available in the update catalog).
• Restarts the Windows Update service and retries the patch application.

What Microsoft changed in the patch

• Fixed initialization race conditions so RuximLog reliably initializes before dependent update components start.
• Hardened the logging component to gracefully recover if prior state files are corrupted or incompatible.
• Improved diagnostic tracing to emit clearer error codes when initialization issues occur, aiding future troubleshooting.