Fresh Start in Windows 10 lets you perform a clean reinstallation and update of Windows while keeping your personal data and most Windows settings intact.

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

Your Phone is now Microsoft Phone Link! Learn more about our recent name change for our PC and Android mobile apps.

Learn about Windows 11 minimum system requirements and how to assess your upgrade eligibility.

Learn how to manage your Microsoft devices. Add, remove, register, or rename a device on your Microsoft account.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

Keyboard shortcuts are keys or combinations of keys that provide an alternate way to do something you'd typically do with a mouse. Here’s the list for the new Microsoft Edge and Microsoft Edge for Mac.

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

Find out how to install the latest driver for your printer. If you recently upgraded Windows, your printer driver might need to be reinstalled.

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。