Optiarc DVD/RW AD-7581S ATA Device. It is not working I upgraded my HP G62 laptop into Windows 7 Ultimate. (may or may not be the issue). The DVD drive does not work. It spins intermittently but never comes up with anything in the My Computer side. it always looks like it is empty. I have ran through uninstall drivers and reinstall drivers (dont know if it is doing the right one). I think the laptop was original 32bit I saw the processor was 64bit compatible so when I upgraded to windows 7 ultimate I did 64bit so maybe thats the reason. I did the whole diskpart/ list volume and got results so that means the disk drive should work? Most of the time the disk does not spin at all though. Please help.