I had a failing motherboard. The two drives were originally set to RAID 1 (Via Promise) but had degraded some years ago...the RAID array was removed...and the drives continued to function as separate entities. One boot the other merely storage. I cloned the boot drive and installed a new (different) motherboard. If I attempt to do a repair install of Windows XP, windows does not see the old OS. I wanted to do a repair of Win XP Pro>Vista Business upgrade>Win 7 Pro upgrade...the reason being that there are many programs installed that I don't want to have to reinstall all. If I try to boot to the hard drive , I get "NTLDR is missing".
I have tried fixboot, fixmbr but no joy.
Any suggestions? Thanks