I bought a new Sony vaio VPCEB15PA laptop with Windows 7 Home Premium installed in it. I want to install Windows 7 Ultimate and also want to make multiple partitions. But when I put Windows 7 ultimate DVD in DVD rom and reboot it but it donot get boot from DVD rom but load the old Windows 7 Home. I also change the first boot device option to external boot rather then from HD. but it never does. is there any other process to do that as I want to install Windows 7 ultimate.
The first boot device should be your CD/DVD Drive. Can you confirm this (double check)?