Introduction
There are a few reasons why you may need to do this. Often times it is due to having issues with Outlook on your Mac. An example is if you try to open Outlook after updating Office and are prompted to upgrade your database. If the procedure does not go right, you could get a “Outlook can’t upgrade your database.” Error.
Procedure
1. Open Finder and go to Applications.
2. Find Outlook in your applications folder. Right click on Outlook and select Show Package Contents.
3. Open the Contents folder.
4. Open the SharedSupport folder
5. Open Outlook Profile Manager
6. Press the + at the bottom left of the Outlook Profile Manager window.
7. Name the new profile whatever you would like.
8. Once named click on the Settings cog at the bottom left and select Set as Default.
This will essentially reset Outlook back to first time use. You will have to add your email accounts back after this is done.