Under Ways to sign in , you have three choices to sign in with Windows Hello:. Select Facial recognition (Windows Hello) to set up facial recognition sign-in with your PC's infrared camera or an external infrared camera

Alternate command key. What it does. Help. Opens the Help system (if any) for the active window. Undo. Cancels the previous action. Redo. Cancels the previous Undo action.

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若要在 Windows 11 中检查激活状态，请选择“开始 ”按钮，然后选择“设置 > 系统 ” ，然后选择“激活 ”。 。 激活状态将在“激活”旁边列出。 在“设置”中检查激活状态. 你将在“激活”页面上看到以下一条激活状态消息：

In Windows 11, ensure that Camera access, Let apps access your camera, and the individual toggle for the Microsoft Store app you wish to use is turned on. If you do not see the app or website you're looking for in the list, it's likely a desktop app. Desktop apps cannot be individually toggled, but access for those apps can be controlled using Let desktop apps access your camera.

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。

As a way to sign every time, by using a one-time password code to increase account security. This is called two-step verification or multi-factor authentication.

1. 使用Microsoft帐户登录. 系统将提示你使用 Microsoft 帐户登录 . 如果移动设备上已有Microsoft帐户，系统会要求确认帐户，然后单击“ 继续”。 如果你的移动设备上没有现有的Microsoft帐户，系统会要求你登录帐户或创建一个新帐户，然后单击“继续”。 2.

If you already have a Microsoft account that you use to sign in to other Microsoft services (such as Windows, Outlook, OneDrive, Office, MSN, and Skype), use that account to create your Xbox account as well.

To check for any security issues, go to Windows Defender settings, select Show details, and check your security status.