I once had a similar issue when installing windows where my lg bd-rom drive would always stop working half way through an installation and it drove me crazy. After many attempts I managed to get it installed after I changed gpu so thought that was the problem.
However, my bd drive was still playing up and would vanish from the device manager list and not read any discs requiring a reboot! Anyway to cut my rambling short it turned out I had a faulty psu! It was powerful enough a good brand and the last thing I checked so it might be worth you trying a differnet one to see if it helps