了解如何排查 Windows 中的蓝牙问题。 解决连接蓝牙设备或配件时出现的问题。

Get help for the account you use with Microsoft. Find how to set up Microsoft account, protect it, and use it to manage your services and subscriptions.

Learn how to activate Windows using an internet connection, automated system, or live support advocate.

Use multiple desktops in Windows to organize projects, or quickly switch between desktops before a meeting.

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

Access, download, or run the Surface app and the Surface Diagnostic Toolkit to help find and solve Surface problems.

了解如何在电脑或 Mac 上安装、重新安装或激活 Microsoft 365 或 Office 2019。

With online threats getting more advanced day by day, it is important to prioritize the safety of your web browsing. Microsoft Edge offers several features and practices that can enhance your online security and protect your personal information.

Find the information you need to import to or exporting from Outlook, whether you're using Office 365, Outlook 2016, or a Mac.

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。