即使已开启其他防火墙，开启 Microsoft Defender 防火墙也很重要。 它保护你免遭未经授权的访问。 若要打开或关闭 Microsoft Defender 防火墙，请执行以下操作：

Windows 媒体播放器是 Windows 附带的内置多媒体播放器。 虽然它是一个可靠且广泛使用的应用程序，但用户可能会不时遇到错误和问题。

Windows 10, version 22H2 update history; July 23, 2024—KB5040525 (OS Build 19045.4717) Preview; July 9, 2024—KB5040427 (OS Builds 19044.4651 and 19045.4651)

Windows 11, version 23H2 ; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)

Find out how to use keyboard shortcuts to navigate Windows faster and easier. Browse a comprehensive list of Windows shortcuts for different tasks.

在 Windows Server 2012 中，适用于 Microsoft Windows 的更新 (KB4486081) 显示在“控制面板”的“已安装的更新”下。 在 Windows RT 8.1、Windows 8.1 或 Windows Server 2012 R2 中，适用于 Microsoft Windows 的更新 (KB4486105) 显示在“控制面板”的“已安装的更新”下。

Learn how to view, manage, and delete cookies in Microsoft Edge.

Here are a few different ways to find help for Windows. Search for help - Enter a question or keywords in the search box on the taskbar to find apps, files, settings, and get help from the web.

Learn about Xbox consoles, system requirements, and networking, and get troubleshooting help.

Learn how to troubleshoot Miracast connections and fix problems connecting to a wireless display or dock in Windows.