What is Microsoft 2FA?

It is an extra layer of security. When you log in, a notification will pop up on your mobile app asking, “Approve sign-in request?” Simply tap Approve to log in immediately without typing a code.

What You Need

  • Your mobile phone (with the free Microsoft Authenticator app installed)
  • A computer to access the settings page and scan the QR code

Setup Guide (4 Steps)

Step 1: Go to Settings on Your Computer

  • Open your browser and go to: mysignins.microsoft.com, then log in with your Microsoft account.
  • Click on Security info.
  • Click + Add sign-in method.
  • Select Authenticator app and click Add.

Step 2: Connect to Your Phone

  • A QR code will appear on your computer screen.
  • Open the Microsoft Authenticator app on your phone.
  • Tap the + icon in the top right corner -> Select Work or school account (or Personal account) -> Tap Scan a QR code.
  • Scan the QR code displayed on your computer screen with your phone.

Step 3: Test the Setup

  • Your computer screen will prompt a test, such as displaying a random 2-digit number.
  • A notification will pop up on your phone. Enter that number on your phone and tap Approve.
  • Your computer will display “Approved”—setup complete!

Common Issues & Quick Solutions

Issue Solution
1. No notification pops up on your phone Open the Microsoft Authenticator app manually on your phone, and the prompt will appear immediately.
2. An approval prompt pops up when you didn’t try to log in Tap Deny immediately! This means someone else knows your password. Change your password right away.
3. Changed phone / Phone lost On the computer login screen, click Sign in another way to receive a code via SMS or a backup email instead.

In short: Keep the Microsoft Authenticator app on your phone, and when you log in, just tap “Approve” on your mobile screen—the most convenient and secure method!