Cast to a display from a Windows PC. You can wirelessly connect your PC to a TV, projector, or other kind of external display that supports Miracast. Turn on your TV, projector, or other display. If you're using a Miracast dongle or adapter, make sure it's plugged in to the display.

Learn how to manage your Microsoft subscription, including billing, renewal, and cancellation options.

瞭解如何在行動裝置、Windows 裝置或 Xbox 主機上兌換 Microsoft/Xbox 禮品卡或其他代碼。

With a USB-C connection, you can charge your Windows 11 PC, and you can also connect to other USB Type-C devices such as mobile phones, docking stations, display adapters, and other devices that have a USB-C port. Unfortunately, some combinations of hardware and software may cause problems.

兑换数字代码. 所有 Xbox 数字代码长度均为 25 个字符，包括数字和字母，并且采用五组字符（每组包含五个字符）格式 (xxxxx-xxxxx-xxxxx-xxxxx-xxxxx)。. 如果你尝试在 Windows 或 Xbox 设备上兑换代码，请确保已正确输入所有 25 位数字。. 若要了解有关 Xbox 礼品卡和代码的 ...

兑换礼品卡和充值码以进行 Xbox 购买和延长 Xbox 订阅。 代码的长度为 25 个字符，包括数字和字母，并且采用横竖 5 个字符的 5x5 格式。 代码可以是你从 Microsoft 或受信任的零售商处购买的数字卡或物理卡。

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

瞭解如何在行動裝置、Windows 裝置或 Xbox 主機上兌換 Microsoft/Xbox 禮品卡或其他代碼。

Use the Office offline installer to install Office 2016 or Office 2013 if you don't have an active Internet connection or you're having problems with slow speed or unreliable connections.

Microsoft Rewards is getting even better for gamers. It’s now easier to get started, earn, and redeem points with Rewards, and much easier to use on your Xbox console and apps (available in select markets). Rewards with Xbox is part of the Microsoft Rewards program.