had the same problem with a Dell Optiplex 330. I received the
STOP 0x0000007B(0xF78DA63C,0x0000034,0X x0000000,0x0000000 error message if I booted with Windows XP. I resolved the issue by the following actions
1. On start up (Dell logo), press F2 to enter BIOS
2. Expand the "Drives" section
3. Go to "SATA Operation"
4. Change this from "RAID Auto/AHCI" to "RAID Auto/ATA"
