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My MacBook Air isn't turning on

639 Views 3 Replies Latest reply: Dec 19, 2012 6:23 PM by JasonFear RSS
Ricemorsch Calculating status...
Currently Being Moderated
Dec 18, 2012 4:24 PM

I will sign in with my password, the computer will then take really long to load up and when it does load up, it shuts back down.

MacBook Air
  • JasonFear Level 5 Level 5 (4,935 points)
    Currently Being Moderated
    Dec 19, 2012 1:40 AM (in response to Ricemorsch)

    When is it shutting down during the startup process:

     

    1.) Before or after startup chime?

    2.) Before or after Apple logo?

    3.) Before or after Apple logo with spinning gear?

    4.) Before or after blue screen that appears after the Apple logo with spinning gear?

    5.) On username authentication? (if auto-sign on is disabled)

    6.) On Desktop load? (if auto-sign on is enabled)

  • JasonFear Level 5 Level 5 (4,935 points)
    Currently Being Moderated
    Dec 19, 2012 6:23 PM (in response to Ricemorsch)

    Check out this article -

     

    http://support.apple.com/kb/TS1417

     

    The article is written so that you'll want to follow it from top to bottom.

     

    1.) Try a Safe Boot

    2.) Try Disk Utility

    3.) Use fsck if necessary

    ... etc

     

    Given when the machine is shutting down it seems unlikely to be an OS issue as it never gets to the blue screen. A reinstall of the OS if all of the steps in the article fail wouldn't hurt but it's unlikely to fix the issue if all those other recommendations fail.

     

    In the event that all those repair options fail then the next stop is a trip to the Genius Bar as the drive itself may need to be replaced.

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