Play MP4 files in Windows 10 by right-clicking the file and choosing what application to open it with.

了解如何重置更改 Microsoft 帐户密码。 获取有关忘记 Microsoft 帐户密码的帮助。

Learn how to manage the online safety and privacy settings on the Xbox console for you and every member of your family group.

Get troubleshooting steps for when you can't sign in to the Xbox app.

Learn how to control your PC by voice using Windows Speech Recognition commands for dictation, keyboard shortcuts, punctuation, apps, and more.

You can see multiple calendars at the same time side-by-side or combined into a stacked overlay view to help you see availability across calendars.

更新 Surface 设备和 Windows。 下载最新的驱动程序和固件更新，以使 Surface 设备保持最佳性能。

Create a channel in Microsoft Teams by selecting Create channel from the menu next to the channel name.

Discover how to boost your browsing speed and save battery life with Microsoft Edge's performance features, such as sleeping tabs and efficiency mode.

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