Well, how do you define "Windows"? Windows RT (not WinRT!) is ARM based Windows that can only run "Metro-Style" apps. With the exception of Office that comes pr

Well, how do you define "Windows"? Windows RT (not WinRT!) is ARM based Windows that can only run "Metro-Style" apps. With the exception of Office that comes preinstalled on Surface RT. It still has some familiar features like the desktop, command prompt, Explorer, like normal Windows OS but you can't install any desktop software.