1. Uninstall Teams completely
  2. Close properly in Task Manager
  3. Delete all folders (if they exist)

%AppData%\Microsoft\Teams %LocalAppData%\Microsoft\Teams %LocalAppData%\Packages\MSTeams_8wekyb3d8bbwe %LocalAppData%\SquirrelTemp %ProgramData%\Microsoft\Teams %ProgramFiles%\WindowsApps\MSTeams* %LocalAppData%\Microsoft\OneAuth %LocalAppData%\Microsoft\TokenBroker %temp%

  1. Check Credential Manager for any saved credentials and remove
  2. Install drivers from DellSupport
  3. Restart
  4. Re-install Teams

Reset Teams

Teams Phone shared voicemail and call routing

Allow others to let attendees into a meeting