How do I delete an authentication method?

1. In any web browser go to https://aka.ms/setupsecurityinfo (Remember, type this into the address bar at the top, not the search bar).
2. Enter your email address and click ‘Next’.
3. Enter your password and click ‘Next’.
4. Click ‘Security Info’.
5. Remove the old method by clicking ‘Delete’ at the right hand side of the screen.