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Set up multi-factor authentication in Microsoft 365

you can add multi-factor authentication (MFA) to your account for added security when signing in. This additional layer of security helps prevent unauthorized access to your email by requiring an additional step when signing into your account.

In this article, you will learn how to set up and enable multi-factor authentication for your Microsoft 365 account.

With that being said, here are the instructions to set up multi-factor authentication.

How to enable multi-factor authentication in Microsoft 365

• Using your Microsoft 365 email and password, sign in to Outlook on the web.

• After signing in, visit the multi-factor authentication page.

• From here, select the check box next to the user showing the MFA status.

• Afterward, quick steps will then show up on the right hand side. Select Enable.

• From the confirmation window, select enable multi-factor auth. Then close.

• Now select the check box for the same user. From quick steps, choose Enforce.

With the email account that MFA was enforced on, sign in to Outlook on the web once more. During the sign in process, you will have to enter the phone number that the verification code should be sent to. After entering the number, select Next.

Once you have set up multi-factor authentication, you will then receive an app password for email clients where basic authentication is used. Then choose Done.

By following these steps, you will have successfully set up multi-factor authentication for your Microsoft365.com/setup account. Additionally, you may also want to require all users within your organization to use MFA. If so, this can be accomplished by automatically enabling security defaults.

How to disable multi-factor authentication

You may decide later that you want to disable MFA for your account. If so, here are the steps to do so.

1. Using your Microsoft 365 email address and password, sign in to Outlook on the web.

2. After signing in, visit the multi-factor authentication page.

3. From here, select the check box next to the user you want to disable multi-factor authentication for.

4. In the quick steps that show on the right, choose Disable.

5. From the confirmation window that displays, select yes. Then close.

Activate a brand new Office or Microsoft 365 product key

If you bought a new Office product key card, or you received a product key when you bought Office through an online store, go to Office.com/setup or Microsoft365.com/setup and follow the on-screen prompts. This is a one-time process that adds your new product to your Microsoft account. After you redeem your key, you can install Office

Troubleshoot activation errors

If Office can't activate, it eventually becomes unlicensed and all editing features of Office are disabled. Office can become unlicensed for a number of reasons. For example, if your Microsoft 365 subscription expires, you must renew your subscription to restore all features of Office. If Office was pre-installed on your new PC, you must start an Microsoft 365 Family trial or buy Office to continue using Office.

If you're still getting notifications after renewing or buying Microsoft 365

You might still need to enter a product key, if you bought a physical box or card from a retail store. Even if you already paid for it, your subscription won’t actually start until you enter the product key on the box or card, or follow the link in your email receipt. For help with using a product key to renew your Microsoft 365 subscription, see Renew Microsoft 365 for home .