Step 1: Open the Play Store

Step 2: Search for Microsoft Authenticator

Step 3: Select Install

Step 4: Open the Microsoft Authenticator App

Select the Open option after the install has completed or go to your list of installed applications and select the Microsoft Authenticator app.

Step 5: Add an Account

Select the plus sign in the circle to start adding an account.

Step 6: Select Work or School Account

Step 7: Scan the QR Code

Scan the QR code on your computer screen with your phone. After the scan has been completed Microsoft will automatically begin authenticating the application to your account.

The application will also show your account in it.