Facing a situation where Outlook closes automatically after opening? This could be caused due to a damaged PST file or a corrupt add-in. Run Outlook in Safe Mode to check. Disable any suspicious add-ins. If Outlook still fails, the PST file might need repairing. While Microsoft offers ScanPST, it's not always effective. A better option is using Yota PST Converter to repair the file safely. Also, make sure Outlook is updated and consider creating a new user profile. These simple steps often solve the problem.