How to Delete Default Profile In Outlook

Run -> regedit

Outlook 2013
HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Profiles\

Outlook 2010

HKEY_CURRENT_USER\Software\Microsoft\Windows NT\Current Version\Windows Messaging SubSystem\Profile\profile-name

Note - delete the profile or delete the whole

under Profile if you want Default Setting