Compatible with Surface Dial off-screen interaction*. Cameras, video, and audio. Windows Hello face authentication camera (front-facing) 5.0MP front-facing camera with 1080p full HD video. 10.0MP rear-facing autofocus camera with 1080p HD and 4k video. Dual far-field Studio Mics. 2W stereo speakers with Dolby Atmos®.

Tap or click Update and recovery, and then tap or click Windows Update. Tap or click Check now. If updates are found, tap or click View details. In the list of updates, select the update containing KB 2919355, and then tap or click Install. If you're prompted for an administrator password or confirmation, enter the password or provide confirmation.

提醒一下，Windows 8.1已于 2023 年 1 月 10 日终止支持。. 此时将不再提供技术支持和软件更新。. 如果你有运行Windows 8.1的设备，我们建议将它们升级到更新的、服务中且受支持的 Windows 版本。. 如果设备不符合运行更高版本的 Windows 的技术要求，建议将设备替换为 ...

获取适用于 Windows 8.1 和 Windows RT 的语言包的最简单方式是使用语言控制面板下载并安装它们。 下载和安装其他语言，以便使用首选语言查看菜单、对话框和其他用户界面项目。 如果你希望共享或重新分发语言包，则必须改为从下载中心下载它。

Note: NET Framework 4.8.1 installers have been refreshed to include the latest servicing updates as of June 13th, 2023. Apart from the servicing fixes, there is no change in the .NET Framework 4.8.1 product that was released originally on August 9th, 2022. If you have already installed .NET Framework 4.8.1, you do not need to install this update.

升级到 Windows 10：常见问题解答. 将电脑从以前版本的 Windows - 如 Windows 7 或 Windows 8.1 - 升级到 Windows 10。. 虽然可以在现有设备上进行升级，但 Microsoft 建议在新电脑上使用 Windows 10，以便充分利用最新功能和安全性改进。. 本常见问题解答旨在解决有关升级到 ...

Enter Device Manager in the search box, and tap or click Device Manager. In the list of hardware categories, double-tap or double-click the category your device is in and then double-tap or double-click the device you want. For example, to see your video card, tap or click Display adapters, and then double-tap or double-click the video card name.

The Microsoft .NET Framework 4.8 is a highly compatible, in-place update to the Microsoft .NET Framework 4, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1 and 4.7.2. The offline package can be used in situations in which the web installer cannot be used because of lack of Internet connectivity. This package is larger than the web installer ...

如果运行的是 Windows 10、Windows 8.1 或 Windows 8，在运行系统文件检查器之前，请先运行收件箱部署映像服务和管理 (DISM) 工具。. （如果运行的是 Windows 7 或 Windows Vista，请跳到步骤 3。. 键入以下命令，然后按 Enter 键。. 命令操作可能需要几分钟才能完成。. DISM.exe ...

适用于 Windows 7 SP1 和 Windows 8.1 的新 Microsoft Edge 更新：2020 年 6 月 17 日. 此更新不以企业设备为目标。. 具体而言，此更新面向运行 Windows 7 SP1 或更高版本以及 Windows 8.1 或更高版本（家庭版、专业版、旗舰版、初学者版或核心版）的设备。. 在 Active Directory 或 Azure ...