How do I set up Microsoft Authenticator on my new phone?

To set up the Microsoft Authenticator app on a new phone, follow these steps:
  1. Open your phone’s app store (Google Play or the Apple App Store)
  2. Find the Microsoft Authenticator app.
  3. Install the Microsoft Authenticator app.
  4. Log in to your Microsoft Authenticator account on the new device.

How do I get a QR code for Microsoft Authenticator app?

Go to the security verification settings screen. For information on how to get to this screen, see Changing your security settings. Check the box next to Authenticator app then select Configure. This brings up a screen with a QR code on it.