Microsoft have apparently released a Windows 8.1 update that detects whether you're using a touch screen or a mouse & keyboard PC. It will then load either the touch screen friendly menu or the traditional Desktop accordingly. I've downloaded all the available Windows 8.1 updates and still get the Modern tile interface screen on start-up. Maybe there's a setting. Can anyone advise?
What device are you using it on? My understanding is that it will boot to the Modern interface on a tablet but on all other devices (laptop, desktop) it will boot to the desktop so it is not dependent on mouse/touchscreen. My laptop has a touch screen and it now boots to desktop.