Outlook not opening after Windows 11 update
If Outlook is not opening or responding properly after a Windows 11 update, a disabled or misconfigured Teams Meeting add-in is often the root cause. You can resolve this issue by re-enabling the add-in in Outlook Options or adjusting its LoadBehavior setting in the Windows Registry. If you recently upgraded to the new Microsoft Teams, running the dedicated cleanup PowerShell script will restore add-in functionality.
Daniel Okafor