检查你的 DirectX 版本 - Microsoft 支持
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。
管理 Microsoft 365 订阅或 Office 产品 - Microsoft 支持
登录到 microsoft365.com 以查看Microsoft 365 工作或学校帐户。 登录 安装和管理应用。 在 Office 应用 卡上，选择“ 管理”，然后选择“ 安装 ”以安装或重新安装最新的桌面应用或其他应用，例如 Project 或 Visio 。(只要管理员 为你分配了许可证 并授予你自安装的权限，安装选项就可用。
适用于:
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Open the Camera in Windows - Microsoft Support
How to open the Camera app in Windows. To open up your webcam or camera, select the Start button, then select All apps, and then select Camera in the list of apps. If you have multiple cameras, you can switch between them by selecting Change Camera at the top right once the Camera app is opened.. Open Camera
Use Internet Explorer in Windows 10 - Microsoft Support
Select Internet Explorer (Desktop app) from the results. If you can't find Internet Explorer on your device, you'll need to add it as a feature. Select Start > Search , and enter Windows features. Select Turn Windows features on or off from the results and make sure the box next to Internet Explorer 11 is selected.
Find and open File Explorer - Microsoft Support
Now, you can use apps to share files and photos right from File Explorer. Select the files you want to share, go to the Share tab, select the Share button, and then choose an app. For more info on sharing options, see Share files in File Explorer.
Microsoft 支持
Microsoft 支持可帮助你处理 Microsoft 产品的问题。 查找有关 Microsoft Copilot、Microsoft 365、Windows、Surface 等操作方法的文章、视频和培训。 了解 Microsoft Copilot 在每天使用的应用中使用 AI 助手实现可以想象的任何内容。
将应用设置为在启动设备时自动运行 - Microsoft 支持
你可以选择在启动设备时自动启动的应用。 如果所需的应用未显示在“启动”页上，请参阅 “设置”中的“将应用添加到启动”页。 疑难解答 如果你看到“找不到此应用”作为应用标题，则表示该应用可能位于网络驱动器上，或者该应用的路径可能不存在。
Recover lost files on Windows 10 - Microsoft Support
If you can’t locate a lost file from your backup, then you can use Windows File Recovery, which is a command line app available from the Microsoft Store.Use this app to try to recover lost files that have been deleted from your local storage device (including internal drives, external drives, and USB devices) and can’t be restored from the Recycle Bin.
Connect your Windows PC to an external display that supports Miracast ...
Turn on your TV or projector. If you're using a Miracast dongle or adapter, make sure it's plugged in to the display. On your PC, make sure Wi-Fi is turned on. On the taskbar, select the action center icon > Connect > pick your display. Follow any additional instructions on the screen. Otherwise, you're done.
下载 Internet Explorer 11（脱机安装程序） - Microsoft 支持
如果发现操作系统运行的不是最新版本的 Internet Explorer，则可使用位于 Internet Explorer 下载中心 的可用链接之一下载它。 其他显示语言 Windows 7 语言界面包 (LIP) 提供了使用最为广泛的用户界面区域的翻译版本。