@KD_GAMING- Do your research before you post-
Xbox One runs two operating systems within a hypervisor; games run within one separate operating system, while apps and the user interface run within a stripped-down version of Microsoft Windows; the original system software was based on Windows 8, but it has since been changed to Windows 10.[126][127] This architecture allows resources to be allocated specifically to different aspects of the console's functions, including multitasking and Kinect processing, ensuring an "absolute guarantee of performance" for games.[128][129] Xbox One supports Universal Windows Platform apps, which can be designed to run across Xbox One, Windows 10, and Windows 10 Mobile in synchronization with the Windows platform.[126][130][131]
Took me less then 5 minutes to look this up.