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To disable Microsoft Teams from starting at start up, follow the steps mentioned below:
Method 1: Disable from Task Manager
You can disable Microsoft Teams from Task Manager and it will not start up automatically:
Press Ctrl + Shift + Esc key to open
Go to Startup tab.
Click on Microsoft Teams, and click on
Method 2: Change settings
You can the settings in Microsoft Teams and see if that helps:
Launch Microsoft Teams.
Click on the Profile icon on the top right corner and click on
Scroll down and clear the checkbox for Auto Start Application.
Method 3: Modifying Registry
You can delete the entry for Microsoft Teams from Registry and check:
Note: Important this section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow
these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.