Your Microsoft or non-Microsoft ... mysignins.microsoft.com > Security Info > Add sign-in method > Authenticator App and following the instructions using the provided QR code to add your account.

Microsoft Authenticator ... QR code, you can scan it to get started. To add accounts from other websites like Google or Facebook, look for a two-factor authentication option in the respective app ...

On your computer, on the Microsoft set-up page, under Security Info click +Add method ... and record video (Android). You must select Allow, so the authenticator app can access your camera to take a ...