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。

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.

Learn how to get Microsoft Store updates for your apps and games. Download the latest versions of Microsoft Store apps and games.

If you already have an account signed in to OneDrive and you want to add or remove another account, you’ll do that in OneDrive Settings.

Quick Assist lets someone you trust take over your Windows 10 or Windows 11 PC and fix a problem from wherever they are.

We’re continually releasing updates to our application, based on customer feedback. Check out What's New in the latest updates for Skype on desktop and mobile.

How to stop website notifications in Microsoft Edge. You can remove or block notifications for individual websites in the following ways: Remove or block notifications in Edge settings

Learn how to update your Xbox console offline. Unplug the network cable if you're using a wired network connection. Power off your console, and then unplug the power cord to ensure that the console is completely powered off.

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

See how to arrange all your open windows using the mouse, keyboard, or the Snap Assist feature in Windows.