Microsoft Store (previously Windows Store) is an app store for Microsoft Windows, Windows Server and Xbox OS. It was first made for Windows 8 and Windows Server 2012 to make adding new programs easier for the users. When Windows 10 was released, Microsoft put Xbox Store, Windows Marketplace, Xbox Music, Xbox Video, and the Windows phone store all in one program they called Microsoft Store.
In 2015, there were more than 670,000 different programs on Microsoft Store. The biggest groups of programs were Games and Entertainment. Before a program is added to the Microsoft Store, it must pass security, content, and compatibility checks.