Hands On With the Windows 10 Preview Build. Windows 10, formerly known as Windows 9, will give users a choice between "The new Interface", formerly known as "Metro", and sometimes called "The tiled interface" and the traditional desktop interface used in Windows 7. This is to eliminate the confusion users felt between the touch screen and desktop competing interfaces in Windows 8. Is all of that clear now? Of course not. Is Microsoft intentionally playing with our heads? Of course not. But, weird naming conventions aside, the new Windows will hopefully know the difference between you using a tablet with a touchscreen, and you using a notebook without a touchscreen, and present you with the proper interface. Or not. I am so confused. I think I might stay with Windows 8, which, underneath the tiled interface, I use like Windows 7, which has the desktop interface I like. Jeez.