使用双重验证时，Microsoft Authenticator 应用可帮助你登录帐户。

Experience Microsoft Copilot on windows devices using the Copilot app! The Copilot app helps you get answers and inspiration from across the web, supports creativity and collaboration, and helps you focus on the task at hand.

Learn how to protect your PC, identity, and data from tech support scams.

Use family safety settings to block inappropriate websites and searches on Windows, Xbox and mobile devices.

A Microsoft Exchange account is a work or school email account. The organization that gave you the Exchange email account is running a Microsoft Exchange Server, or is using Microsoft 365 which uses Exchange Server to provide email.

如果知道用户名和密码但已停止工作，请阅读 我的用户名和密码已停止工作。. 如果你忘记了 Microsoft 帐户用户名或电子邮件地址， 并且 之前已在 Microsoft 帐户上设置了其他 安全信息 ，请按照以下步骤操作。

See how to find things you've downloaded on your PC.

Learn how to use Azure Authenticator with Microsoft 365. It makes 2-step verification really easy!

Sign in to account.microsoft.com, then select Order History on your Rewards page.

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2