了解文件扩展名是什么、Windows 中有哪些常见的扩展名，以及如何在“文件资源管理器”中查看它们。.

Learn how to enable virtualization through the UEFI (or BIOS) of your PC to run the Windows Subsystem for Android or Windows Subsystem for Linux.

Windows XP and Windows Server 2003. Describes how to obtain the latest version of DirectX to enable games and multimedia applications on your system.

Check if the Phone Link is set to run in the background. Next, make sure that nothing is preventing you from sharing across devices. If you’re still experiencing persistent connection issues, you can try to reset your app. You can also follow the steps to unlink your Android device.

This article lists the multimedia file types that are supported by Windows Media Player 12. (How to determine your version of Windows Media Player). Note: Additional file formats might be supported if you install new codecs in Windows. For more information, see Codecs: frequently asked questions.

In File Explorer under View, in the Show/hide group, select the File name extensions check box. Below is a list of common Windows file name extensions and formats. Learn what file name extensions are, which extensions are common in Windows, and how to view them in File Explorer.

If you purchased a product from Microsoft, you may be able to request a refund, exchange or a return. Digital goods like apps, games, add-on content, subscriptions, movies, TV shows, and books aren't returnable unless the offer for applicable law states that you're eligible for a refund.