Q: My mac won't boot, stuck on loading bar and I can't reinstall OS as it says disk is locked!
HI there,
my iMac running mountain lion refusing to boot, it sticks on the apple logo and progress bar and spinning wheel. My files are backed up and safe so that's not an issue I've attempted disk utility to reinstall the OS but when I get through the only drive is the recovery HD and it's locked! What do I do?!
iMac, iOS 8
Posted on Apr 13, 2016 9:39 AM
Your drive has failed or is failing, most likely. Or there is some other hardware failure. At this point you want to make an appointment at the Apple Retail Store - Genius Bar and take it in for service. You can also look for an Apple Store - Find a Store - Apple.
If it is just the hard drive, then you can try booting the computer from an external drive to be sure the computer is working.
Posted on Apr 13, 2016 6:37 PM