Go to Settings > Apps > Installed apps .
Note: This works primarily for the "Mail and Calendar" app (older version) or pre-installed Outlook apps. uninstall outlook windows 11
Uninstalling the program removes the software, but it leaves your email data and profile settings on your computer. If you are troubleshooting a corruption issue or wiping the computer, you should remove this data via the Registry. Go to Settings > Apps > Installed apps