Dear Driftwood HR,
Greetings! Thank you for posting in Microsoft Community. We are happy to help you.
Generally, we can use steps below to uninstall the Teams App on Windows computer:
Open Windows Settings > Apps > Installed apps> search for Teams App, then click the 3 dots next to it and choose Uninstall.
Then reinstall Teams by downloading package from this support page: Download Microsoft Teams Desktop and Mobile Apps | Microsoft Teams
If you meet any error message when trying to reinstall Teams, may I know if there is any error message? If yes, please share a screenshot of it. I will further help you.
Look forward to your reply. Please understand that our initial reply may not always immediately resolve the issue. However, with your help and more detailed information, we can work together to find a solution.
Thanks for your cooperation and understanding. I hope that you are keeping safe and well!
Sincerely,
Tina | Microsoft Community Moderator