Important: You don't need to remove old security information unless there is an account security risk (e.g. someone else has access to your old mailbox). If you do need to replace your security information, make sure you add new information first. If you request removal of all security information in your account, the account is put into a restricted state for 30-days. Your information doesn't ...

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.

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

What are passkeys? Passkeys are a replacement for your password. With passkeys, you can sign into your Microsoft personal account or your work/school account using your face, fingerprint, or PIN. Signing in with a passkey is simple and fast and helps protect you against phishing attacks. Passkeys are supported on desktop and mobile browsers (mobile app support is coming soon). You can use ...

Note: This content can help you with your work or school account. If you're having problems verification codes on a personal Microsoft account, see Troubleshooting verification code issues.

Whenever you sign in to your Microsoft account, you may also get sign-in approval notifications in the Outlook mobile app. You will see sign-in requests appear either on the lock screen or in the Outlook mobile app. You'll also be able to get one-time passcodes, which you can copy/paste into other sign-in screens.

你可以在 iOS 设备上的 OneDrive 应用中 共享 OneDrive 文件、照片和文件夹，就像在电脑或 Mac 上一样。 还可以查看 与你共享的文件。 要 停止共享，请转到 OneDrive 网站 并使用你的 Microsoft 帐户或者工作或学校帐户登录。

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

Learn how to resolve issues with the OneDrive mobile app

Microsoft 优先考虑帐户安全性，并且会在未经你许可的情况下阻止用户登录。 当我们发现有从新位置或新设备进行登录的尝试时，我们会向你发送电子邮件和短信通知来帮助保护帐户。 如果你的电话号码或电子邮件发生了更改，请务必及时在 安全性基础知识 页面上更新安全联系人信息，以便我们与 ...