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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。 获取打开或关闭 Windows Defender 防火墙的相关步骤。

Learn how to troubleshoot problems updating Windows. Find answers to common questions and issues installing Windows updates.

Sync your files between Windows devices and the cloud with OneDrive. Learn how to install, use, and troubleshoot OneDrive with Microsoft Support.

Windows 11版本 23H2 的新增功能. Windows 11，版本 22H2 和 23H2 共享一个通用的核心操作系统和一组相同的系统文件。. 因此，Windows 11版本 22H2 和 23H2 的发行说明将共享更新历史记录页。. 每个发布页将包含 22H2 和 23H2 已解决的问题列表。. 请注意，23H2 将始终包含 22H2 受 ...

Microsoft Support offers assistance for Microsoft products, including how-to articles, videos, and training for various software and devices.

Change mouse settings. You can customize your mouse in a variety of ways in Windows. For instance, you can swap the functions of your mouse buttons, make the mouse pointer more visible, and alter the scroll speed of the mouse wheel.

Internet Explorer 11 support ended on June 15, 2022. We recommend you use Microsoft Edge for a faster, more secure and more modern web browsing experience.

To download the offline installer for Internet Explorer 11, choose your language and system below.

Get answers to all of your Microsoft Word questions. Find Word help, how-to articles, training videos, tutorials, and more.