hello i got the .iso file of windows 7 on a usb i put it in the asrock bios and i cant navigate it is a asrock 970 extreme 3 r2.0 motherboard with fx-6300 and asus r9 270 on it. http://gyazo.com/6fb39887dd1f85ec3cf464d6934c5f8d thats the menu . Also is there anyway of getting a windows 8 iso instead of a cd because i have the key from a previous purchase but not the cd.