检查你的版本. DirectX 是许多 Windows 游戏都需要的一种多媒体技术套件。 如果你的电脑未安装正确版本的 DirectX（产品包装盒上应标有所需的版本），游戏可能无法正常运行。

Learn how to access Windows device security settings in Windows Security to help protect your device from malicious software.

Learn how to use digital signatures, digital IDs, and signature lines in Microsoft 365 files, such as Word, Excel, and PowerPoint.

Learn how to reinstall Windows on your PC and how activation works after it's installed.

A Microsoft account gives you access to Microsoft products and services with just one login.

Learn how to set an out of office status message in the Teams mobile app using our step-by-step guide. It's a great way to let your colleagues know your availability.

If the AutoRecover option is turned on, you can automatically save versions of your file while you’re working on it.

If your computer is showing a black or blank screen in Windows, these troubleshooting tips could help get your system back up and running.

Outlook 网页版是组织使用的基于 Web 的 Outlook 版本。你需要使用工作或学校帐户登录才能访问此基于 Web 的 Outlook 版本。 你的工作或学校帐户通常由组织中的某人分配给你。

The new Bing is now available to everybody directly from the Windows taskbar, making more ways to interact with your PC across search, answers, chat, and creation available anytime, right on your desktop.