Learn how to update Windows to ensure your device operates smoothly and securely with the latest features.

Learn how to upgrade from Windows 10 Home to Windows 10 Pro or Windows 11 Home to Windows 11 Pro, including how to use a valid product key or the Microsoft Store.

Learn how you can free up drive space in Windows. Keep your PC running smoothly and up to date by increasing the disk space.

Learn new and useful keyboard features, tips, and tricks for Windows with this overview from Microsoft Support.

Learn how to earn Microsoft Rewards points when you browse the web with Microsoft Edge, search on Bing.com, and more.

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

To create a document, open Word, select a blank document or template, and start typing. Discover professionally designed templates for Microsoft Word.

Find out how to boot into safe mode in Windows from Settings, the sign-in screen, and a black or blank screen.

Learn how to find which version of Windows operating system your PC is running and device specifications.

如何将 IF 函数 (与 Excel 中) AND、OR 和 NOT 函数结合使用，以在给定值之间进行逻辑比较。