DirectX 9.0c 通过安装 DirectX 9.0c 最终用户运行时适用于 Windows XP 和 Windows Server 2003。. 某些应用程序和游戏需要 DirectX 9。 但是，你的计算机包含更新版本的 DirectX。 如果安装并运行需要 DirectX 9 的应用程序或游戏，你可能会收到错误消息“无法启动此程序，因为计算机中丢失 d3dx9_35.dll。

The Health report starts off by showing you the last time a Device Health scan was run. The time displayed should be basically the current time, as Windows Security tries to run a Device Health scan when you open the Device performance & health page.. Beyond the time of last scan you'll see the status of the key areas that Device Health monitors:

Tip: You can also check to see what your network adapter supports by opening the Command Prompt (or Terminal), and then typing the command netsh wlan show drivers.Look next to Radio types supported and see if it includes 802.11be (for Wi-Fi 7) or 802.11ax (for Wi-Fi 6/6e) and look under Authentication and cipher supported in infrastructure mode and see if it includes WPA3 Personal and WPA3 ...

注意: 如果你不在 Windows 设备上，可以通过转到“联系”Microsoft 支持部门 键入“排查 BSOD 错误”，在浏览器中运行“蓝屏疑难解答”。 然后按照“推荐的帮助”下的引导演练进行操作。

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。

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

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除原装 Xbox 无线控制器外，其他都可以通过无线方式获取更新，而不必使用 USB 缆线进行连接。 此控制器底部有 3.5 毫米圆形小端口（如果控制器有此端口，仅可通过 USB 缆线进行更新）。

Keyboard: All-in-One Media Keyboard, Microsoft Designer Compact Keyboard, Microsoft Number Pad, Microsoft Modern Keyboard, Microsoft Bluetooth Keyboard (NEW), Sculpt Mobile Keyboard, Universal Foldable Keyboard, Wedge Mobile Keyboard, Wedge Mobile Keyboard, Universal Mobile Keyboard, Microsoft Wired Ergonomic Keyboard (NEW), Internet Keyboard Pro, Microsoft Arc Keyboard, Natural Ergo Keyboard ...

System File Checker is a utility in Windows that checks for problems with files on your computer. To run it, follow these steps: Make sure you've installed the latest updates for Windows, and then restart your machine.