I was trying to install Windows XP on a separate partition from my Windows 7 (RC) installation, but after the first reboot of the Windows XP setup, I get "Error loading operating system" and the system halts.
Here are the exact steps I followed:
- Installed Windows 7 on a clean drive - Windows created a 100MB system partition, then I created a 350MB partition for the O/S, and I left 125GB unallocated.
- Installed Windows XP in a new partition allocated from 125GB unallocated space.
- After first reboot of Windows XP setup, I get "Error loading operating system".
I attempted to fix the problem using the "Startup Repair" tool on the Windows 7 installation DVD, and although it found a "master boot record corruption" and fixed it, I still get the same error after rebooting.