Join Teams meeting with ease using our step-by-step guide. Learn how to join a Teams meeting via your calendar, a dial-in number, or on the web.

Find out what model of Surface you're using. There are several ways to find out which Surface device model you have. Look in the Surface app

To import a text file, you can open the file or import the text file as an external data range. To export a text file, use the Save As command.

了解在 Windows 中查找 BitLocker 恢复密钥的不同方法，并了解如何在系统上激活 BitLocker。

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

了解如何在 Windows 10 和 Windows 11 中添加用户帐户。 有了帐户之后，每个人都可拥有单独的文件、浏览器收藏夹和私人桌面。

Find everything you need to manage your Xbox account, profile, and more.

Learn how to identify a phishing scam, designed to steal money via fake emails.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

To review app, game or subscription purchases, track orders or view and print invoices, sign in to the order history page on your Microsoft account dashboard.