I wanted to start over so I reinstalled but everything is still configured. How can I reset?
Reinstalling indeed won’t reset your configuration settings nor will it delete any of your email as I’ve blogged previously. To start with an “empty” Outlook, like when you configured it for the first time, you’ll have to recreate your mail profile.
To do this open Control Panel via the Start Menu and double click the Mail applet. Press the Show Profile… button to add or delete mail profiles.
For more information about recreating your mail profile see this guide.
Note: For 64-bit versions of Windows you’ll have to open the “View 32-bit Control Panel” section first before you can see the Mail applet.