上次更新时间：2022 年 4 月 6 日. 问题. 安装 Windows 10 更新KB5008212或升级到 Windows 11 后，最近的电子邮件可能不会显示在搜索结果中。. 此问题主要影响使用 POP、IMAP 和脱机Exchange帐户的用户，因为其搜索使用本地 Windows Search 服务为电子邮件编制索引。

屏幕时间报告显示有关家庭成员使用设备的时间和时长的每日和每周详细信息。 深入了解家庭成员在特定社交媒体应用、游戏或 Web 浏览器上花费的时间，并决定是否要为任何连接的设备 启用屏幕时间限制。. 若要查看家庭成员的屏幕时间，请点击“ 今天”，然后点击“ 屏幕时间 > 设备”。

必填： 旧 Windows 版本的更新需要安装 SHA-2 代码签名支持。 (KB4493730 和 KB4474419) 年 4 月和 5 月发布的支持是必需的，才能继续接收这些版本的 Windows 的更新。 目前，所有旧版 Windows 更新签名都从 SHA1 和双 (SHA-1/SHA-2) 更改为 SHA-2。 Windows Server 2008 SP2. 2019 年 7 月 16 日

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.

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.

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.

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.

从授权零售商处购买 Windows 11 的盒装副本. 产品密钥. 可在 Windows 11 包装盒内的标签上找到产品密钥。 从授权零售商处购买 Windows 11 的数字副本. 产品密钥. 可在购买 Windows 11 后收到的确认电子邮件中或在可通过零售商的网站访问的数字保险箱中找到产品密钥。

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 ...

Microsoft 工作区折扣计划(以前称为家用许可计划)，则安装 2019、2016 或 2013 版的 Office 专业增强版、Office 标准版或独立应用（如 Word 或 Project）的步骤可能会有所不同：如果你通过公司购买了 Microsoft 365 供个人使用，请参阅通过工作场所折扣计划安装 Office。