Stop Microsoft Teams from starting automatically in Windows 10
Windows 10 has a built-in Startup program manager in the Task Manager. It controls what programs are allowed to be launched automatically when a computer starts. But for Microsoft Teams, there is an entry in the Registry Editor created by the developers to control when it starts. Microsoft Teams is a great alternative to Slack from Microsoft. Being a great collaboration tool, it is bound to be open when a computer boots up. But if someone wants to modify the entries in the Registry Editor to disable the automatic startup, then this guide will help you.
There is only one way to prevent Microsoft Teams from running on startup – and that is by using the Registry Editor.
So open the Registry Editor and navigate to the following location:
Delete the DWORD entry for com.squirrel.Teams.Teams.
Exit the Registry Editor.
Reboot your computer to see changes taking effect.