If you’re using Microsoft Outlook Version 15.8 for Apple Mac and it is crashing on startup. You may want to try following these steps to restore normal operation.
- Open the Terminal program.
- Type defaults delete com.microsoft.Outlook and press Enter. This will delete the old preferences.
- Type killall cfprefsd and press Enter to stop the cached prefs.
- Launch Outlook again.
- You’ll see the welcome screens as if you’re running Outlook for the first time. If you previously setup Outlook and had imported from the old 2011 version, you can skip that step when prompted.