查找 Windows 7 或 Windows 8.1 的产品密钥. 卸载或重新安装 Windows 7 或 Windows 8.1 时，通常需要产品密钥。. 通常，如果购买的是实物 Windows 拷贝，产品密钥应该在标签上或者在 Windows 随附包装盒中的卡上。. 如果 Windows 已预先安装在计算机上，产品密钥应显示在设备 ...

To log on as an administrator, you need to have a user account on the computer with an Administrator account type. If you are not sure if the account that you have on the computer is an administrator account, you can check the account type after you have logged on. The steps that you should follow will vary, depending on whether your computer ...

Manage user accounts in Windows. Windows allows adding multiple user account to use the same device, enabling each user to have their own settings, documents, and applications. For example, parents can have their own accounts with administrative privileges to manage settings and install software, while children can have standard accounts with ...

After you purchase software, the download will be shown in your Order history. To find a specific download, sign in to the Order history page with the Microsoft account you used to make the purchase. Find the software, and then select Product key/Install. Note: If you're having problems installing an app from the Microsoft Store, see Fix ...

Windows 的语言包. 使用“添加语言”功能再为 Windows 11 安装一种语言，以查看该语言的菜单、对话框和支持的应用及网站。. 为此，请执行以下操作: 选择“ 开始 ”>“ 设置 ”>“ 时间和语言 ”>“ 语言和地区 ”。. 前往“ 首选语言 ”，选择“ 添加语言 ”。. 在 ...

For more information see How to back up and restore the registry in Windows. There are two ways to open Registry Editor in Windows 10: In the search box on the taskbar, type regedit, then select Registry Editor (Desktop app) from the results. Right-click Start , then select Run. Type regedit in the Open: box, and then select OK.

Click on a photo to show the buttons at the top, including Zoom, Delete, Rotate, Edit & Create, Share, and Print. Press and hold (or right-click) for more commands, such as File info, Save as, Copy, and Set as. Open the Photos app from the button below. Open the Photos app. The Photos app in Windows 10 does the same things as Windows Photo ...

Open and run DxDiag.exe. This tool is used to collect info about devices to help troubleshoot problems with DirectX sound and video. A support person might ask for this info, or you might post it in a forum when you ask for help. In Windows, select Start and enter dxdiag into the search box on the taskbar. Select dxdiag from the results. In the ...

Actualizar el controlador del dispositivo. En el cuadro de búsqueda de la barra de tareas, escribe administrador de dispositivos y luego selecciona Administrador de dispositivos. Selecciona una categoría para ver los nombres de dispositivos y luego haz clic con el botón derecho (o mantén presionado) en el que quieres actualizar. Selecciona ...

本文介绍如何获取最新版本的 DirectX 以启用系统上的游戏和多媒体应用程序。 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。