I have an old Toshiba DVR with 4 drive bays and XP 32bit, wanted to increase recording capacity. I was able to get Western Digital 4TB drives working as additional storage drives, left a 2 GB for OS. The Intel BIOS still only sees 1.something on the drives but Windows sees the whole space since GPT Loader worked. I had to do the Diskpart, list disk, select disk x, clean on each one for the GUI to see all space but that did it. Side note, the DVR came with Windows XP 'Embedded' version for some reason which blue screened when I rebooted after installing GPT Loader. I wiped it with a fresh normal XP Pro and GPT worked fine.
