Currently Being ModeratedJul 26, 2013 11:14 PM (in response to Xoliph)
In order to follow the guides below, you will need access to another Mac and a firewire cable. Your hard drive is failing. If you make an Genuis Bar appointment at a local Apple Store, they will be able to perform this. If you choose the latter, make sure to bring an external hard drive to which your data can subsequently be transferred to once it has been recovered from the failing drive.
Currently Being ModeratedJul 26, 2013 11:33 PM (in response to Xoliph)
It may not necessarily be the drive, it could be the SATA cable attachment that connects it to your logicboard. I would advise making a Genuis bar appointment so they can confirm the problem (disk/cable) and facilitate the solution (retrieving your data).