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After doing a pram and a smc reset my late 2011 mac book pro 10.8 shows the apple logo on a grey screen with a loading gif and a progress bar which once finished the mac just turns off.

I have got the error in the disk utility of my hard drive. "Invalid index key"

I am currently backing up the hard drive in the disk utility!

  • Did you do the SMC reset while the MB was in Safe Sleep, Hibernation, Suspend-To-Disk? – Max Ried May 2 '14 at 17:30
  • No I tried 2 techniques but when I did the take the charger out for 15 secs that seems to be when it broke. – maxisme May 2 '14 at 17:50
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It seems your hard disk is failing. Backup all your date with Time Machine. Then boot in to Recovery Parition by starting up and holdind the keys cmd-R. Try to repair the disk with Disk Utility. Anyway, consider to replace it.

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