If your Outlook.com account has been blocked, follow the instructions in this article to unblock it.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Provides information for avoiding and reporting Microsoft technical support scams.

Learn how to use virus and threat protection options in Windows Security to scan your device for threats and view the results.

从确保设备可以运行 Windows 11 到备份文件和安装 Windows 11，了解如何为 Windows 11 升级做好准备。

Learn how to troubleshoot USB-C problems in Windows and fix USB devices, ports, and adapters not working properly.

Chat is a core feature of Microsoft Teams that allows you to communicate with your colleagues and partners in real time. Whether you want to start a one-on-one chat, a group chat, or a chat in a channel, this webpage will show you the first things to know about chats in Microsoft Teams. Learn how to create, manage, and customize your chats, and discover some tips and tricks to enhance your ...

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

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

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。