it’s possible for you to find three methods to prevent Microsoft Teams from starting in this part.
These 3 methods work on both Windows 10 and Windows 11.
Step 2: ClickMore detailsif you only see a few running programs.

Step 3: Switch to theStartuptab.
Step 4: Find Microsoft Teams and right-click it.
you’re able to also right-click Microsoft Teams and directly click theDisablebutton to disable Microsoft Teams startup.

Here is how to disable Microsoft Teams from startup through this way:
Step 1: Open Microsoft Teams.
Step 2: hit the 3-dot menu next to your profile picture, then selectSettings.
Step 3: flush the checkbox next toAuto-start Teams.
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Do you know how to uninstall Chat from Microsoft Teams on your Windows 11 computer?
Here are two easy guides in this post.
However, serious problems might happen if you modify the registry key incorrectly.

So, to protect your setup, youd betterback up your registry keyin advance.
Step 5: SelectDeletefrom the context menu to delete the entry for Microsoft Teams.
Step 6: kickstart your system.
You should find that Microsoft Teams will not automatically start when you boot your box.