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

Learn how to create new storage spaces, choose between mirror, two-way, and parity spaces, optimize drive usage, and remove a drive from a pool.

获取有关 Windows 安全的帮助; 在 Microsoft Edge 中查看和删除浏览器历史记录; 删除和管理 Cookie; 重新安装 Windows 时安全移除有价值的内容

了解如何更改 Windows 中显示器的刷新率，以确定在屏幕上显示运动的平滑程度。

Learn how to manage and set device screen time limits on Windows, Xbox, and mobile devices connected through the Microsoft Family Safety app.

Learn how to update your Xbox console offline. Unplug the network cable if you're using a wired network connection. Power off your console, and then unplug the power cord to ensure that the console is completely powered off.

Find out how to change your Xbox gamertag through a browser, on your Xbox console, or your Windows device.

There are some solutions you can try. First steps if your Surface Type Cover or Keyboard doesn't work. To try to resolve these issues, you can begin by following the steps below to get the latest updates, detach the Type cover or keyboard, force a restart, reattach the Type Cover or Keyboard, or confirm connectivity.. Get the latest updates

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

Admins set default meeting settings. They try to optimize for most use cases, but if you want to adjust your options for a specific Teams meeting, go to Meeting options.