Hi All, A friend has a 24 inch iMac (No idea of Year / Model) When you turn it on you get a white screen with the apple logo and a grey progress bar. The progress bar take about 30 min to complete and then the iMac shuts off. I have tried to boot into safe mode but the same behaviour is repeated. I managed to get in to disk utility and tried to repair the hard drive but this had no effect. The only option I can think off is to format the drive and reinstall OSX, however we the drive has all of his family photos on and he has no back-up. Has anyone got any recommendations on how to back up the drive or any other Ideas to get the iMac to boot OSX?