Microsoft.windows.windowsupdate.ruximlog Failed To Start Here
| Aspect | Details |
|--------|---------|
| Is it a Microsoft file? | No — ruximlog is not a legitimate Windows component. |
| Common cause | Leftover scheduled task or service from third-party software or a corrupted entry. |
| Danger level | Low, but scan for malware to be safe. |
| Easiest fix | Search Task Scheduler and Services for ruximlog, then disable/delete. |
| Best practice | Use Autoruns or Registry Editor to remove all traces. |
If you’re unsure about any step, post a screenshot of the full Event Viewer error message in a tech support forum (like Reddit’s r/WindowsHelp or Microsoft Community) for further guidance.
The "Microsoft.Windows.WindowsUpdate.RUXIMLog" failed to start error, often accompanied by code 0xC0000035, indicates a non-critical background logging conflict within the Reusable User Experience Interaction Manager component. Resolving this issue typically involves running DISM/SFC scans, resetting Windows Update services, or addressing driver conflicts. For detailed troubleshooting steps from Microsoft, visit Microsoft Support.
Since last windows update at start of June i have had constant crashes The bugcheck was: 0x00000116 - Microsoft Q&A
The failure of the Microsoft.Windows.WindowsUpdate.RUXIMLog session is typically a non-critical event tracing error, often associated with Windows Update component . This error (often ID 2 with code 0xC0000035
) indicates that a logging session could not start because a file or configuration was already in use or missing. Microsoft Learn Understanding the RUXIMLog Error What it is
: RUXIM (Reusable User Experience Installation Manager) is a component used by Windows Update to manage update notifications and background tasks. Significance
: For most users, this error is "noise" in the Event Viewer and does not prevent the OS from functioning or updates from installing. Common Trigger : Recent system updates or conflicts with the Intel Driver & Support Assistant have been linked to these log failures. Microsoft Learn Recommended Solutions
If your system is performing normally otherwise, you can safely ignore this log error. If you are experiencing performance issues or update failures, follow these steps: Microsoft Learn microsoft.windows.windowsupdate.ruximlog failed to start
The error message "Session 'Microsoft.Windows.WindowsUpdate.RUXIMLog' failed to start"
is a common Event Viewer entry, often accompanied by error code 0xC0000035
typically stems from a conflict within Windows Update logging components introduced by specific updates like Microsoft Learn What is RUXIM? Reusable UX Integration Manager
) is a Windows 10 component used by Windows Update to manage user interface elements and scan the system. The session is responsible for generating log files to track these activities. Microsoft Learn Why It Fails (Error 0xC0000035) In many cases, the error code 0xC0000035 STATUS_OBJECT_NAME_COLLISION
, meaning the system tried to create a log file or object that already exists. Community reports also suggest the following causes: Microsoft Learn Update Conflicts: Specifically linked to the installation of
, which reportedly replaced older remediation services but may have lacked necessary logging executables in certain update packages. Corrupted Files:
General system file corruption can prevent the session from initializing correctly. Microsoft Learn Recommended Fixes
If your system is running smoothly otherwise, this error can often be safely ignored | Aspect | Details | |--------|---------| | Is
as it rarely impacts actual update downloads. However, if you want to clear it, try these steps: Microsoft Learn Run System Repairs:
Use the Command Prompt as Administrator to fix potential file corruption: DISM /Online /Cleanup-Image /RestoreHealth sfc /scannow Clear Windows Update Cache: Stop the update service, delete files in C:\Windows\SoftwareDistribution , and restart the service. Registry Modification:
Some users resolve this by deleting the specific log entry in the registry: Navigate to
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\WMI\Autologger Delete the Microsoft.Windows.WindowsUpdate.RUXIMLog key and restart. Uninstall Health Tools: If present, uninstalling Microsoft Update Health Tools Settings > Apps and restarting has resolved the conflict for some. Microsoft Learn For official troubleshooting, you can also use the Windows Update Troubleshooter provided by Microsoft Support. Microsoft Support Are you seeing any secondary symptoms
like failed updates or slow performance, or just the log error? Startup Error in Event Viewer - Microsoft Q&A
Windows Update is the lifeline of any PC running Microsoft Windows. It delivers critical security patches, driver updates, and feature improvements. However, when Windows Update breaks, the error messages can be cryptic and frustrating.
One such obscure error is: "microsoft.windows.windowsupdate.ruximlog failed to start."
If you are seeing this message in your Event Viewer, or if Windows Update is stuck and you traced the issue back to this specific log entry, you are likely confused about what ruximlog is and why it’s failing. If you’ve encountered the error message:
This article will explain what this error means, why it occurs, and—most importantly—how to fix it permanently.
net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
ren C:\Windows\System32\catroot2 catroot2.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserver
If you’ve encountered the error message:
microsoft.windows.windowsupdate.ruximlog failed to start
you’re likely seeing it in Windows Event Viewer (especially under Windows Logs > System or Application) or in a startup log. This error can be confusing because it references a component that looks like a Windows Update logging module, but with an unusual name (ruximlog).
The most common cause is a scheduled task or a Windows service that is trying to start ruximlog.
In isolation, a failed start error is not dangerous—it is merely an annoyance. However, the presence of microsoft.windows.windowsupdate.ruximlog is a red flag. It indicates that something unverified tried to integrate itself with Windows Update.
While it might just be a leftover from uninstalled junkware, it could also be a signature of adware or a malfunctioning crack/patch for software. Microsoft has no official component named "ruximlog." Therefore, the safest course is to remove it entirely using the registry method combined with a full security scan.