You could do it from if you can make a bootable CD rom, but I think you need a boot disk with e cd rom drivers anyway. Do any BIOS have generic cd rom drivers in them?
I suppose creating a virtual ram drive from windows might work - I think they survive reboots. Haven't got a clue how to do it though, not directly from windows anyway, only automatically from a windows boot disk. There must be a guide somewhere about make a ram drive somewhere abouts on the net.