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.

注意: 如果是通过以下任一方式获取的 Microsoft 365：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 ...

获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。

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.

In quick settings: To find the quick setting for Bluetooth, select the Network, Sound, or Battery icons ( ) next to the time and date on the right side of your taskbar.Select Bluetooth to turn it on. If it's turned on without any Bluetooth devices connected, it might appear as Not connected . If you don't see Bluetooth in quick settings, you might need to add it.

如何登入Outlook 網頁版、存取您的電子郵件、連絡人和行事曆。 附註: 如果您使用Microsoft 帳戶登入 ，例如 Outlook.com、Hotmail、Live 或 MSN 電子郵件帳戶，而不是公司或學校帳戶，請登出，然後使用正確的帳戶再次登入。 不確定您是使用哪個帳戶登入嗎？

如果不想继续使用Windows 10 家庭版并想要更改版本，请参阅将Windows 10 家庭版升级到 Windows 10 专业版 。 激活最新的 Windows 10 Insider Preview 如果你是 Windows 预览体验成员并且已在运行 Windows 10 Insider Preview 内部版本，你将自动收到已激活的新的内部版本，前提是在升级到新的内部版本之前 Windows 已在设备 ...

Check the Xbox services, games, and apps for any service outages.

Note: If it’s been fewer than 10 days since you upgraded to Windows 10, your previous version of Windows will be listed as a system file you can delete.If you need to free up drive space, you can delete it, but keep in mind that you'll be deleting your Windows.old folder, which contains files that give you the option to go back to your previous version of Windows.

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.