Change the Default Outlook Profile or Prompt on Opening View The Full Article This Solution Guide will show you how to change the Outlook profile permanently or have it prompt you each time it opens. This is assuming you have multiple profiles set up already. 1. Open Control Panel 2. If available, click Switch to Classic View. 3. DoubleClick Mail. 4. If you would like to be prompted each time Outlook is opened, click Prompt for a profile to be used. If you just want to change the automatic profile, click Always use this profile and select the approprate profile. 5. If you selected Prompt for a profile, you will see this window upon opening Outlook otherwise, Outlook will always open with the profile you have selected.