Hello all, my Lenovo y400 laptop will not boot past the Lenovo logo. After about five minutes I get the "your pc ran into a problem and needs to restart. We are just collecting some error info, and then we'll restart for you" error with the message "unmountable boot volume" under it. After restarting it will try to initialize the recovery tool automatically , but after about 5 minutes it restarts and does the process all over. I'm guessing there are either corrupted files on the HD or that the HD is broken. I've tried using a recovery usb to restore or reset the computer but it seems that the usb doesn't boot either, the screen just goes black and stays like that until I turn it off. I have exhausted my limited computer knowledge in trying to fix this problem and I'm not sure what else to try. Any help is greatly appreciated.