Individual users

Individual users can enable or disable Teams from starting automatically by changing a setting in Teams. Please visit https://support.microsoft.com/en-us/office/change-settings-in-teams-b506e8f1-1a96-4cf1-8c6b-b6ed4f424bc7#bkmk_howdoigetmicrosoftteamstostartautomatically for assistance with this setting.

Groups of computers

Administrators of computer systems in your college or department may wish, in some cases, to prevent Microsoft Teams from automatically opening on a particular group of Windows computers. Please visit https://docs.microsoft.com/en-us/deployoffice/teams-install#use-group-policy-to-prevent-microsoft-teams-from-starting-automatically-after-installation for guidance on how to accomplish this using a Group Policy Object (GPO).