Multi Factor Authentication (MFA) - I got a new device. How do I remove the Microsoft Authenticator app from my old device and move to the new one?

Adding the Microsoft Authenticator app to a new device does not automatically remove it from any other devices. To manage which devices are configured for your account, visit the same website that you use to manage two-step verification, and choose to remove old apps.

For personal Microsoft accounts, this website is your account security page. For work or school Microsoft accounts, this website may be either MyApps or a custom portal that your organization has set up.