I'm currently running a WD 500g with Windows 7 Ultimate x64 and a Seagate 250g with Windows XP Home Edition. I recently changed my BIOS boot order from the WD to the Seagate to see if I could still run XP. Turns out I can. My problem is that now I can't load Windows 7 back up on the other hard disk.
Bear in mind that I have no other OS' loaded on any other partitions, and these HDDs are separate. The Seagate is IDE and the WD is Sata.
I can load perfectly fine if I set the Seagate to load, but I get the infamous "Bootmgr is missing, Press Ctrl Alt Delete to restart" error msg when I try to boot win7.
I'm running a custom PC with a Gigabyte GA-X58A-UD3R mobo
nVidia GeForce GTS450
Seagate 250g Windows XP
Western Digital 500g Windows 7
i7 940 processor
Anything other than that I don't think is relevant.
I am getting frustrated, so any help is appreciated. Thank you.
P.S. I have the OEM Windows 7, so no disk available.