1. Download the Microsoft Authenticator app from your phone's app store if you haven't already. Open the application.
2. From the home page of the app tap the "plus" icon located in the top right of the page.
3. Select "Work or school account" when prompted
4. Select the "scan QR code" option that appears and scan the QR code displayed on your computer. (QR code must be displaying on a second device in order to scan it with your phone camera, if you see a QR code on your phone please restart the process with a computer handy.)
5. You should now have you account added to the Authenticator app