You can resolve problems with Microsoft Authenticator by checking the tips in this article and reviewing some of the known errors.

Using Authenticator as a way to sign in If you have turned on passwordless, two-step, or multi-factor authentication for your account, use the following steps to sign-in: Go to the site where you want to sign in. Enter your username at the sign-in prompt and select Next. Select Send notification.

Microsoft prioritizes account security and works to prevent people from signing in without your permission. When we notice a sign-in attempt from a new location or device, we help protect the account by sending you an email message and an SMS alert. If your phone number or email changes, it's important to promptly update the security contact info on the Security basics page so we can work with ...

Signing your email messages with a digital ID helps to prove your identity and prevent message tampering.

Learn how to set up your user account for multifactor authentication with Microsoft 365.

如果你尝试使用 Microsoft 帐户登录 Office，可能会收到消息要求提供家长权限或让你验证年龄。 有关为何看到此消息以及如何解决该问题的详细信息，请参阅 家长许可和 Microsoft 子女帐户。 在 iOS 邮件应用中设置Microsoft 365 、Exchange 或 Outlook 电子邮件

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

The type of support Microsoft provides for consumers depends on the product you're calling about and if you have a product for home or for business use. It can also depend on if you want help for an issue with a service like OneDrive or Outlook.com, or help with Windows, but you don't have an existing Microsoft 365 subscription.

Having trouble connecting to your email from Outlook on your desktop? Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue. Repair a profile in Outlook In Outlook, choose File. Choose Account Settings > Account Settings. On the Email tab, choose your account (profile), and then choose Repair.

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