How to Set Up Multi-Factor Authentication for Office 365

To ensure the security of your account when signing in to Outlook, Teams, and other Microsoft Office 365 apps from personal devices, you will need to set up multi-factor authentication. This will help protect your information and ensure that only you can access your account.

Requirements for Authentication Setup:

• A working desktop or personal computer.
• A smartphone (Option 1) or a landline phone (Option 2).

The guide provides two methods for authentication setup:

1. Using a smartphone.
2. Using a landline phone or SMS messages.

Signing in to Office 365:

1. Open the Chrome or Edge browser on your desktop or personal computer.

2. Go to: https://aka.ms/mfasetup.

3. Enter your email address and click Next (see Figure 1).

   
   Figure 1. Entering Email Address

4. Enter your password and click Sign in (see Figure 2).

   
   Figure 2. Entering Password

5. If you see the question "Stay signed in?", it is recommended to click Yes when using your personal computer. On public devices, select No (see Figure 3).

   
   Figure 3. Stay Signed In

6. In the pop-up window, click Next to begin the authentication setup process (see Figure 4).

   
   Figure 4. Account Protection

Installing the Authentication App

1. Download the Microsoft Authenticator app from the App Store (iOS) or Google Play (Android) (see Figure 5).

   
   Figure 5. Installing the App

2. During installation, click Open to launch the app (see Figure 6).

   
   Figure 6. Opening the App

3. Select Add work or school account (see Figure 7).

   
   Figure 7. Adding Account

4. Allow the app to use your camera (select Allow) and scan QR codes (see Figure 8).

   
   Figure 8. Allowing Camera Access

5. Go back to your computer and click Next to receive the QR code (see Figure 9).

   
   Figure 9. Clicking Next

6. Use the app on your mobile phone to scan the QR code displayed on the screen (see Figure 10).

   
   Figure 10. Scanning the QR Code

7. Once you receive a notification about successful authentication, click Done.

Signing in to Office 365:

1. Go to: https://aka.ms/mfasetup.

2. Enter your email address and password (see Figure 11).

   
   Figure 11. Entering Login Information

3. In the window that appears, select I want to set up a different method (see Figure 12).

   
   Figure 12. Selecting a Different Method

Setting Up Phone Number

1. Select Phone and click Confirm (see Figure 13).

   
   Figure 13. Choosing Method

2. Select your country code (e.g., Lithuania +370) and enter your phone number.

3. Choose the method Receive a code and click Next (see Figure 14).

   
   Figure 14. Entering Phone Number

4. A confirmation code will be sent to your provided number. Enter it and click Next (see Figure 15).

   
   Figure 15. Confirming You Are Not a Robot

Verification

1. If the authentication is successful, you will see the message Verification complete (see Figure 16).

   
   Figure 16. Successful Verification

2. Click Done to complete the setup (see Figure 17).

   
   Figure 17. Completing Verification