Hotmail 現在為 Outlook.com。 瞭解如何登入以存取您的 Outlook.com、Hotmail、Live 或 MSN 電子郵件帳戶。

Learn how to change or reset your Windows password if you've forgotten or lost it.

Many tasks for Office products don't require a product key because your Microsoft account takes care of them instead.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Learn how to navigate Windows using keyboard shortcuts. Explore a full list of taskbar, command prompt, and general Windows shortcuts.

获取将数字 Xbox 游戏作为礼物发送给他人时遇到的问题的帮助。

Learn how to use the cloud-based clipboard in Windows, share clipboard items across your devices, and pin items to your clipboard menu.

Explore your options and settings when you install add-ins.

在开始之前，请确保你的 Windows 10 电脑支持蓝牙。 有关如何检查的详细信息，请参阅修复 Windows 10 中的蓝牙问题。 如果需要帮助添加没有蓝牙功能的设备，请参阅将设备添加到 Windows 10 电脑。 打开蓝牙. 检查你的 Windows 10 电脑是否支持蓝牙后，需要将其打开。

How to calculate the number of days, months, or years between two dates using the DATEIF function in Excel.