I’m currently running on Windows XP. I want to install Windows Vista. When I installed Windows XP, the setup ran when I first restarted the computer. I tried doing that with Vista, changing the priority to the DVD drive. It totally skips the DVD drive and just boots up my hard drive? Does anybody know why?

I want to install a new clean OS of Windows XP on my computer.

How I usually do it is to boot from the OS CD then format the Hard drive then install a new Windows.

To do this i usually would change the priority boot sequence and put the CD-ROm Drive first… but this time it doesn't work?

I have the motherboard
INTEL D865GLC

It happens like this on all of my computers running this motherboard.

The computer will boot off the CD ONLY if there is no operating system currently on the Hard Drive.

But there is and and want to REdo it.

Is there a way to fix this, or is there another way to format the hard drive and then install a new OS?