New child process ms-teams_modulehost.exe handles the calling stack separately to speed up Teams startup. The new process appears under ms-teams.exe in Task Manager and won't need any special setup.

Microsoft says it will add a new Teams call handler beginning in January 2026 to reduce launch times and boost call ...

If you are unable to see the AppData folder, you may need to turn on the option that enables you to view hidden files and folders. Delete the app folder in the AppData folder. Next, press the Windows ...