了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

An overview of location permissions and your privacy in the Microsoft Edge web browser.

Windows Hello. Windows Hello 可使你通过你的面部、虹膜、指纹或 PIN 登录到你的设备、应用、在线服务和网络。 即使你的 Windows 设备可以使用 Windows Hello 生物识别，也不必这么做。

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

How to access and change the privacy settings in Windows 10 and 11.

Get help with Outlook for Windows, the Outlook app, Outlook.com, and more. Find training videos, how-to articles, and Outlook support content

Learn how to find and install digital downloads from Microsoft Store. See instructions to download and install software directly purchased from Microsoft.

Find out more about Xbox digital codes and gift cards, and how to troubleshoot issues redeeming content.

Get answers to common questions about Windows 11 and Windows 10 in S mode.

You can refer to the contents of cells in another workbook by creating an external reference formula. An external reference (also called a link) is a reference to a cell or range on a worksheet in another Excel workbook, or a reference to a defined name in another workbook.