OK, the threads here typically discuss dual booting from separate partitions or discs. But nearly all do so in the context of a single platform, be it EFI or the classic BIOS. For various reasons I'd like to know the risks and chances for success of doing this across both systems. Meaning: I've an OEM Win 7 Home pre-installed on an EFI/gpt disc. On the other internal mbr disc I'd like to place Win 7 Pro using the Legacy BIOS. Yes, I know I could convert the mbr to gpt and let EFI run the whole show, but then this would not be a 'true' and independent dual boot would it? So, will this work? Will there be conflicts? Will the gpt disc see the mrbr disc and vice versa? Will the respective OSs NOT overwrite the other's boot files/partitions and remap memory? In a word, will a state of democracy prevail on my computer? I'm willing to forego the EasyBCD route in regards to the dual boot screen and simply use Boot override esc key on my Asus when I want to boot into the MBR disc. Thanks for your help.