If you have already registered, you'll be prompted for two-factor verification. Select Security info in the left menu or by using the link in the Security info pane.

Sign in to your work or school account and then go to your My Account portal. To set up the Microsoft Authenticator app Please contact your administrator to delete one of your authenticator apps or hardware tokens.

You can't set up Microsoft Authenticator because you already have five authenticator apps or hardware tokens. If you have set up the Microsoft Authenticator app on five different devices or if you've used five hardware tokens, you won't be able to set up a sixth one, and you might see the following error message: However, this article uses the Microsoft Authenticator app. You aren't required to use the Microsoft Authenticator app, and you can choose a different app during the set up process. Set up the Microsoft Authenticator app from the Security info pageĭepending on your organization’s settings, you might be able to use an authentication app as one of your security info methods. You'll need to choose a different method for two-factor verification. Two-factor verification and password reset authentication. However, not all methods can be used for both. Security info methods are used for both two-factor security verification and for password reset. Security versus password reset verification

In this case, you'll need to choose another method or contact your organization's help desk for more assistance. Note: If you don't see the authenticator app option, it's possible that your organization doesn't allow you to use this option for verification.

Setup ms authenticator