Windows 8 represents the most radical change to Windows in its history. Some would say Microsoft's Metro UI (which will exist across phones, tablets, notebooks, and desktops) is too ambitious and too different from Windows 7, while others praise the sleek, modern, and touch-friendly approach.
Whether you believe Windows 8 is a disaster waiting to happen or Microsoft's greatest work ever, there's no doubt these changes from the Windows you know and love will be driving you up the wall.
That assumes you can install it in the first place...
