nealfer
Level 1 (8 points)
Notebooks

Q: Prohibitory sign during setup macbook air

just bought macbook air 13" 2016. during set up Mac stops responding. I waited for more than 45 minutes, then turn it down. when turning up again a prohibitory sign appear.

what do I do?

MacBook Air

Posted on Sep 25, 2016 2:30 AM

by sarah_s1,Solvedanswer
sarah_s1 sarah_s1
Community Specialists
A:
Hey nealfer,

I understand that your new MacBook Air is booting to a prohibitory symbol after trying to set it up. Let's go over how you can fix this so you can enjoy your Mac.

The reason you are seeing this is that your Mac is having an issue with the startup System Folder. This could have happened while you were setting it up or migrating data. The good news is that can be fixed by reinstalling the version of macOS or OS X that came with your MacBook Air. Take a look at the information below that will explain the screens upon startup. It also has a link to walk you through the reinstallation steps.   
 

Prohibitory symbol

When you see a circle with a slash symbol instead of the Apple logo, it means your Mac couldn't find a valid System Folder to start up from.

If you're using your Mac at a school or business, it might be trying to start from the wrong version of OS X. Contact your IT department for more help. 

If this is your personal Mac, try reinstalling OS X by using OS X Recovery.


About the screens you see when your Mac starts up
https://support.apple.com/en-us/HT204156

Take it easy!

Posted on Sep 26, 2016 11:57 PM

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nealfer

Q: Prohibitory sign during setup macbook air

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  • Helpful answers

  • by sarah_s1,Solvedanswer

    sarah_s1 sarah_s1 Sep 26, 2016 11:57 PM in response to nealfer
    Community Specialists
    Sep 26, 2016 11:57 PM in response to nealfer
    Hey nealfer,

    I understand that your new MacBook Air is booting to a prohibitory symbol after trying to set it up. Let's go over how you can fix this so you can enjoy your Mac.

    The reason you are seeing this is that your Mac is having an issue with the startup System Folder. This could have happened while you were setting it up or migrating data. The good news is that can be fixed by reinstalling the version of macOS or OS X that came with your MacBook Air. Take a look at the information below that will explain the screens upon startup. It also has a link to walk you through the reinstallation steps.   
     

    Prohibitory symbol

    When you see a circle with a slash symbol instead of the Apple logo, it means your Mac couldn't find a valid System Folder to start up from.

    If you're using your Mac at a school or business, it might be trying to start from the wrong version of OS X. Contact your IT department for more help. 

    If this is your personal Mac, try reinstalling OS X by using OS X Recovery.


    About the screens you see when your Mac starts up
    https://support.apple.com/en-us/HT204156

    Take it easy!

  • by nealfer,

    nealfer nealfer Sep 26, 2016 11:59 PM in response to sarah_s1
    Level 1 (8 points)
    Notebooks
    Sep 26, 2016 11:59 PM in response to sarah_s1

    thank u sarah, the problem solved thanks to your help

  • by becky_s22,

    becky_s22 becky_s22 Sep 27, 2016 5:11 AM in response to nealfer
    Community Specialists
    Sep 27, 2016 5:11 AM in response to nealfer
    Hi nealfer,

    Glad to hear that you got it sorted out and it was not problem with the assist. If you have any other question, don't hesitate to post a new thread and we can get to you as soon as possible. 

    Take care!