To open the Control Panel on Windows 11: 1. In the Start menu, enter Control Panel and select [Enter]. OR In the Run menu [Windows + R] or command prompt, enter Control Panel and select [Enter]. The Control Panel window is displayed.
Select Mail:
The Mail Setup window is displayed.
Select Show Profiles...:
The Mail window is displayed.
Select Remove...:
Follow the prompts to fully delete the profile.
Now launch Outlook & when prompted for a profile name, put a suitable name such as "NewOutlook" & sign in
If prompted with a "Allow my organisation to manage this device" check box, please un-tick before clicking ok
Allow time for the new profile to synchronize with Exchange.