Hi there
I'd like a feature in a Bios to enable an ISO on the HDD to be a selectable boot device.
Some MB's have a small Internet Browser built in to the BIOS which can be activated at boot time before loading the OS.
Perhaps even if loading a file system into the BIOS wasn't possible perhaps by selecting this type of option in the BIOS Windows could issue a prompt for the ISO once it could read the file system before loading the rest of its code.
Shouldn't IMO be impossible to do and would certainly make life a lot simpler.
Problem is when the BIOS goes to the HDD, first stop is the MBR. How is it going to find the .iso from there. Maybe if you put it into an active partition all by itself. But now it is looking for a bootmgr there. I guess one would need a "look for .iso" option in the MBR.