With default settings, when you install the Microsoft Teams app, it’s configured to load automatically with Windows. This means that the Teams app automatically starts when you turn on the PC.
For some users, this might be very helpful as they can start using the Teams app without any delay. However, many users do not like this default behavior. Most users do not want the Teams app, or any app, to automatically start on its own. Instead, they would like to launch the app when they want to do so.
If you are also not happy with the default startup behavior of the Teams app, here is how to stop Microsoft Teams from automatically starting in Windows 10/11.
Method 1 of 2
Stop Teams from automatically opening in Windows 10/11
Step 1: Open the Task Manager by right-clicking the Start button and then clicking the Task Manager option.
Step 2: If you see the shorter version of the Task Manager, please click the More details button.
Step 3: Here, switch to the Startup tab by clicking on its icon. Here, right-click on the Microsoft Teams or Teams icon (it might just show up as Update as shown in the picture below) and then click the Disable option.
Method 2 of 2
Prevent Microsoft Teams from automatically starting in Windows 10/11
Step 1: On Windows 10/11, go to Settings > Apps > Startup page.
Step 2: In the Startup apps list, look out for the Microsoft Teams entry. Move the toggle button next to it to the off position to stop Teams from automatically launching.