Note: You may do the below once 2FA has been enabled by the Microsoft admin for your domain.
1. On a computer, open a web browser and go to aka.ms/mfasetup.
2. Enter your email address and click 'Next'.
3. Enter your password when prompted and click 'Sign In'.
4. You will be prompted to set up additional security verification.
5. Click 'Set it up now'.
6. Setup app on your phone to receive verification codes. You can download the Authenticator app from your mobile App Store.
7. Install and launch the Authenticator app on your phone.
8. Tap on 'Add Account', then tap 'Work or school account'.
9. Hold camera of phone towards the screen to capture the QR code on your screen.
10. The smartphone app will show your account with 6 numbers in it.
11. Press Next on the QR Scan page on your computer.
12. Microsoft will then show a 'Checking activation status' popup, wait for it to complete and it will display "Mobile app has been configured for notification and verification codes."
13. Press Next.
14. Microsoft will send out a notification to your smartphone app. Tap 'Approve' on the app.
15. Enter your phone number on the next screen and then press 'Next'.
16. You will be given an app password, which are used in legacy applications but are generally not needed anymore. Store it somewhere secure. Press 'Done' once password is documented.
17. You will be re-dicrected to the Office M365 portal. All done!