To make a long story short, I am trying to downgrade my laptop from Vista to XP - most of my questions have been answered, but where I am stuck is that my laptop is not finding my hard drive when I try to boot from the CD.
Here is the stage where I am stuck:
"Most likely your system is simply accessing the drive in AHCI (Advanced Host Controller Interface) mode. Boot to the BIOS, find the hard drive access method ... and disable AHCI. You should then be able to boot your XP CD with no problem. "
I started up, hit F2 to get to the appropriate menus, but could not find options to disable AHCI. What steps do I need to follow?