The cause of the error may be that the cache folder is storing too many files, preventing Microsoft Teams from launching, and you need to delete them. To delete the ...

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.

If when you try to start the Microsoft Teams desktop app on your Windows 11 or Windows 10 computer, but receive the Error code caa70004, then this post is intended to ...