I don't think the release mechanism is in Windows, I think it's firmware. I heard you can't release it if your battery level is too low (a setting that might be

I don't think the release mechanism is in Windows, I think it's firmware. I heard you can't release it if your battery level is too low (a setting that might be changed or change-able) but I myself released the screen on a model unit while it was in a boot sequence.