Use this procedure when:

• you have a new smartphone

• you no longer receive notifications from Microsoft Authenticator

• MFA no longer works

• you want to reset your verification method

Step 1 — Sign in to your Microsoft account

1. Open a web browser on a computer.

2. Go to: https://myaccount.microsoft.com/

3. Sign in with your work account.

Step 2 — Open security info

1. Click Security.

2. Select Security info.

Or directly:

👉 https://myaccount.microsoft.com/security-info

Here you see all configured sign-in methods (Authenticator, phone, SMS, etc.).

Step 3 — Change default method (IMPORTANT)

You can only remove the Authenticator after changing the default method.

1. Click at the top on Change default method.
   

2. Choose another method, for example:

   • Phone (SMS or call)

   • Verification code

3. Click Confirm.

✅ Authenticator is now no longer the default method.

Step 4 — Remove old MFA methods (reset)

1. Find Microsoft Authenticator in the list.

2. Click Remove.

3. Confirm.

👉 Repeat this for old devices or methods that no longer work.

⚠️ After removal, you must set up MFA again.

Step 5 — Add new verification method

1. Click Add sign-in method.

2. Choose Microsoft Authenticator.

3. Proceed until the QR code is visible.

Step 6 — Install Microsoft Authenticator

On your smartphone:

1. Install Microsoft Authenticator via:

   • Google Play Store (Android)

   • Apple App Store (iPhone)

     

2. Open the app.

3. Select Add work or school account.

4. Choose Scan QR code.

Step 7 — Scan QR code

1. Scan the QR code displayed on your computer.

2. Confirm the test notification.

✅ MFA is now reset.

Step 8 — (Recommended) Make Authenticator default again

1. Click again on Change default method.

2. Choose: App-based verification – notification

Step 9 — Verify functionality

1. Sign in again to Microsoft 365, Outlook, or Teams.

2. Check that you receive an approval notification.