Federica Polegri
Level 1 (0 points)

Q: Hi I am trying to bring back to factory settings my mac air. I am in disk utility. I have erased a partition called Macintosh H, but it doesn't let me erase the rest of the disk.

Hi I am trying to bring back to factory settings my mac air. I am in disk utility. I have erased a partition called Macintosh H, but it doesn't let me erase the rest of the disk.

I am in Broadway Apple store but no genius at the bar for the last half an hour and besides I have been told they are all booked out for the day. The guy in open training said he can't help me with this technical issue. No one to one is available either.

What can I do from here?

 

MacBook Air, OS X Mavericks (10.9.2)

Posted on Sep 9, 2014 11:33 PM

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Federica Polegri

Q: Hi I am trying to bring back to factory settings my mac air. I am in disk utility. I have erased a partition called Macintosh H, b ... more

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  • by Don Archibald,

    Don Archibald Don Archibald Sep 10, 2014 12:03 PM in response to Federica Polegri
    Level 10 (101,435 points)
    Sep 10, 2014 12:03 PM in response to Federica Polegri

    You can not erase the boot volume, meaning the disk (or partition) containing the OS which is running the machine.

     

    In order to erase the entire drive you will need to boot the machine to another disk, typically an install CD or DVD, then use Disk Utility on that disk while booted to it.