The error message you provided indicates that the Messenger app is crashing due to a fault in the Windows.UI.Xaml.dll module. This is a component related to the user interface framework used by Windows applications. The specific error code "0xc000027b" points to a STATUS_ILLEGAL_INSTRUCTION exception, which typically occurs when the application tries to execute an illegal or undefined instruction.
Since you've tried various troubleshooting steps and identified that the issue seems to be related to the Messenger app and the Windows.UI.Xaml.dll module, it's possible that this could be caused by a compatibility problem between the app and the specific version of the Windows.UI.Xaml.dll module installed on your system.
Here are a few steps you can try to address the issue:
Update the App: Make sure you have the latest version of the Messenger app installed. Check for updates in the Microsoft Store.
Windows Updates: Ensure that your Windows 11 is up-to-date with the latest system updates. Sometimes, updates include fixes for compatibility issues.
Compatibility Mode: You can try running the Messenger app in compatibility mode for a previous version of Windows. Right-click the app icon, select "Properties," go to the "Compatibility" tab, and try different compatibility modes.
Contact Developer Support: If the Messenger app is a third-party app and not developed by Microsoft, consider reaching out to the app developer's support for assistance. They might be aware of the issue and could provide a solution or update.
Event Viewer: The event log you provided is useful for diagnosing issues. If you're comfortable, you can search online with the specific error code and details from the event log to see if others have encountered a similar issue and found a solution.
Alternative Solutions: If the Messenger app continues to crash and no solutions are available, you might consider using the web version of Messenger through a web browser until the issue is resolved.
If the issue persists and none of the above steps resolve the problem, it might be worth considering a more in-depth technical analysis or consulting with a professional who specializes in troubleshooting software compatibility issues.