Go to bios and change to CD/DVD drive boot first, order.
(del, esc, F2, F10, depending on your make and model)
Then at least you can run recovery, install another XP in parallel and backup your information (no format).
The CD/DVD drive is first in the boot order. I need to clarify what is happening.
I go to the XP Pro CD and Setup initiates. The drivers are loaded and then the Setup screen comes up giving me three choices: Enter to continue with XP setup; R to initiate a repair with the Recovery Console; and F3 to quit setup. If I select either Enter or R the computer hangs with the message at bottom of the screen saying Examining Disk 0 at Id 0 on bus 0 on atapi....
I can't find a way past this point.