How to uninstall Teams in Windows 10

1. Start “Settings”
2. Click on "Apps."

3. In the pane on the left, click "Apps & features."  In the Apps & features pane on the right, find Microsoft Teams and click on it. Then click "Uninstall." You may need to confirm by clicking "Uninstall" in the pop-up window. 

4. Once Uninstalled.  Restart your computer.  After a restart, Teams should automatically re-install.