Hi, so this is what happend, i, was playing gta sa game, and my laptop froozed so i hold the shutdown button, i power it on, and it loads with that loading loop, but then feeezes and blue screen comes saying " unmoutable boot volume" then it restarts with "Preparing automatic repair", and then loads for few seconds, then a black screen is there and nothing happens , so i turned it off, tried pressing f11, which is system recovery but same thing loads few seconds and then nothing happens just a black screen. By the way its a HP PAVILION 64bit. Pre installed windows 8.1 1tb hdd intel hd graphics 4400 and 8GB rama. thanks.