Microsoft Authenticator helps you sign in to your accounts if you've forgotten your password, use two-step verification or multi-factor authentication, or have gone passwordless on your account.

Learn how to add all your different accounts to the Microsoft Authenticator app.

Learn how you can use the free Microsoft Authenticator app to sign in to all your accounts without using a password.

Get answers to some basic questions about what two-step verification is, and how to set it up and use it to help keep your Microsoft account more secure.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Sign in to your account with your username and password. Open your authenticator app and type the randomly generated code for your account into the Enter code box.

Make sure the account is registered for passwordless and is joined to your work or school. Sign-in with this account on the device registration page, then try enabling passwordless for the account.

To increase the security of your work or school account, your organization may require two steps to sign in. You may not be able to turn this setting off, but you can choose which devices are …

Learn how to manage your Microsoft account security info and troubleshoot verification code issues.

Read through the list of the most common causes, and see if any of them apply to you. Note: This content can help you with your work or school account. If you're having problems verification …