Learn how to sign in or out of your Outlook.com, Hotmail, Live, or MSN email account with Microsoft Support's step-by-step guide.

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。

Nota: Los pasos para instalar las versiones 2019, 2016 o 2013 de Office Profesional Plus, Office Standard o una aplicación independiente como Word o Project pueden ser diferentes si obtuvo Microsoft 365 a través de uno de los siguientes: Programa de descuentos para los empleados de los clientes de Microsoft (anteriormente conocido como Programa para el uso en el hogar): si compró Microsoft ...

Note: The Wireless Display app is available on devices running Windows 11 version 22H2 and newer.If you're running an earlier version of Windows, launch the Connect app by entering connect in the search box on the taskbar, and selecting Connect in the list of results. To find out which version of Windows you're running, see Which version of Windows operating system am I running?

Note: The best and safest way to get driver updates in Windows is always through Windows Update.If you are having problems with Windows Update, you might see if any of the links at Update Windows can help you out first.

Important: you should limit the number of administrators on your Windows device because administrators have complete control over the system.Administrators can change settings, install software, and access all files. If too many people have this level of access, it could lead to security risks like malware installation or unwanted changes to your system.

In the list next to Personalize your background, select Picture, Solid color, Slideshow, or Windows Spotlight (to see a new image from around the world every day).

Swipe in from the right edge of the screen, and then tap Search.Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search.Type Command Prompt in the Search box, right-click Command Prompt, and then click Run as administrator.If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.

警告: Microsoft 不建议在不符合 Windows 11 最低系统要求的设备上安装 Windows 11。 如果选择在不符合这些要求的设备上安装 Windows 11，并且认识到并了解风险，则可以创建以下注册表项值并绕过对 TPM 2.0（至少需要 TPM 1.2）和 CPU 系列和模型的检查。. 注册表项： HKEY_LOCAL_MACHINE\SYSTEM\Setup\MoSetup

If you’re having sound or audio problems, the following suggestions might help. The tips are listed in order, so start with the first one, see if that helps, and then continue to the next one if it doesn’t.