Have a 2010 MacBook Pro. I was backing up some files to an external hard drive yesterday, I ejected the hard drive from my desk top then pulled out the USB cable, my MacBook started to make a crackling noise and everything froze and I had the spinning wheel of death, I left it for a few minutes but after no change I shut down using the off button. When I rebooted there was a flashing question mark and the MacBook wouldn't open. I tried starting up in safe mode but this didn't work, I then started up through OS X recovery mode so that I could repair my Macintosh hd but it was not listed, the only thing in the list was OS X base system. I can't reinstall OS X as again my HD is not Listed. I don't have a time machine or a back up of my HD. Is there anything I can do to fix this, I am not very technical or knowledgable on the workings of macs! Thanks in advance for any help offered.