Ok, I will give it another go. Thanks so much.
Im telling you about the command lines because thats all i get on my screen when i boot from DVD .. A blue windows background and then the black command prompt screen.
Oh I saw this ......which says i cant .. maybe they are wrong .....
64 bit - Can I upgrade from Windows 7 32-bit to Windows 7 64 bit without reinstalling all of my software? - Super User