I've been trying to format my pc, like all the way from scratch, deleting windows and so on. But! When ever I insert the Windows 7 disk into my DVD Drive it just boots up as if it wasn't there. Wich does not allow me to do the usual formata that I've done on my old computer. This is a new computer, with a GTX 760 and an i5-3570K CPU. So since I've got a virus it is slowing my computer, wich bothers me, I would like maximum power from all of its components.