如果应用直接依赖于上面列出的字体之一来显示某些 Unicode 字符，并且未使用 Windows 提供的字体回退机制，且如果系统未安装包含该字体的可选字体包（通常是因为系统和用户配置文件未配置为启用关联的语言），则这些字符将显示为"方框"字形。

Tips: While signing in, select Yes at the "Stay signed in?" prompt if you want to go straight to your mailbox next time (not recommended for shared computers). Alternatively, check the "Don't show this again" box and select No to be prompted for your password each time.. If you can't sign in, or have forgotten your username or password, use our sign-in troubleshooter.

重要: Microsoft帐户、Windows 操作系统和其他Microsoft产品包括密码，以帮助保护你的信息。 本文提供了一些选项，可用于在忘记密码时重置或恢复密码。 请注意，如果这些选项不起作用， Microsoft支持无法帮助你检索或绕过丢失或忘记的密码。

Note: If a compatibility issue has been identified on your device that would disrupt your experience using Windows 11, we will temporarily delay your upgrade until the issue is resolved.Compatibility safeguard holds help ensure you have the best experience possible when upgrading and your productivity is not disrupted if critical apps or drivers are not yet compatible.

Note: The steps to install the 2019, 2016, or 2013 versions of Office Professional Plus, Office Standard, or a stand-alone app such as Word or Project might be different if you got Microsoft 365 through one of the following: Microsoft Workplace Discount Program (formerly known as Home Use Program): If you bought Microsoft 365 for personal use through your company, see Install Office through ...

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?

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

To create the installation media, here's what you'll need: A PC with a reliable internet connection. The download time will vary, depending on your internet connection.

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.

有关 Windows 更新术语的信息，请参阅有关 Windows 更新类型和 每月质量更新类型的文章。 有关 Windows 11 版本 23H2 的概述，请参阅其 更新历史记录页 。 备注 按照 @WindowsUpdate 了解何时将新内容发布到 Windows 发布运行状况仪表板。