Unlocking the descriptor is very easy but a programmer is required so that's why it's usually out of reach for most people. Other than that, all that's required is changing 6 bytes at the Flash Descriptor offset 0x60. If you ever want to do it, you can let me know. You'll probably find the answer yourself as well since you seem to search a lot contrary to most other people that require assistance. For the BIOS issue I don't really have the knowledge to be of any assistance. Maybe if you open a new thread about that someone like CodeRush might pitch in but (justifiably) don't hold your breath.