I installed a new hdd on my comp and have tried to load another OS on to the new hdd to make the system dual boot, each drive is set as master on each controller pri and sec. the problem is when I boot into windows I keep getting reg errors it will reboot and boot into windows and see both drives but any changes I make to one ie. changing desktop settings it shows up on the other hdd in windows. I thought that if I went into bios and booted directly to the new hdd that os would load but it only seems to boot to C drive.