When it opened again, the look of the toolbar will be slightly different and you should see the Teams Meeting button in Calendar invitations.
Log in to Office 365 with your and IdentiKey password.Open the Outlook main menu and select Activate Office.
Please make sure you understand all these instructions before clicking Remove again. Non-DDS supported customers need to check and upgrade their Outlook software. To fix, DDS customers can run an uninstall script to remove the volume license and activate an Office 365 instance.