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TS1367: Troubleshooting: My computer won't turn on

Learn about Troubleshooting: My computer won't turn on

TS1367 My MacBook air has a blinking file folder icon on a blank screen with a ? In the center of the icon. I've tried turning on and off three times but it hasn't helped.  Any suggestions?

724 Views 2 Replies Latest reply: Aug 26, 2013 3:31 PM by Kappy RSS
jan.mueller Calculating status...
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Aug 26, 2013 3:27 PM

My MacBook Air has a blinking file folder icon on a blank screen with a ? In the middle of the icon. I've tried turning my computer off and on three times with no luck.  Any recommendations on how to fix the problem? 

MacBook Air (11-inch Late 2010), iOS 4
  • Niel Level 10 Level 10 (234,655 points)

    There are four general causes of this issue:


    1. The computer's PRAM no longer contains a valid startup disk setting when there aren't any problems with the disk itself. This can be checked for by pressing the Option key and seeing if the drive appears.

    2. The internal drive's directory structure has become damaged. This requires usage of an alternate bootable system to perform the repair.

    3. Critical system files have been deleted. This requires usage of an alternate bootable system to reinstall them.

    4. The internal drive has died or become unplugged. This is the most likely case if the computer took a sharp impact or there are unusual sounds coming from the hard drive's location.



  • Kappy Level 10 Level 10 (221,025 points)

    Reinstall OS X without erasing the drive


    1. Repair the Hard Drive and Permissions


    Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.


    If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.


    2. Reinstall Snow Leopard


    If the drive is OK then quit DU and return to the installer.  Proceed with reinstalling OS X.  Note that the Snow Leopard installer will not erase your drive or disturb your files.  After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.


    Download and install Mac OS X 10.6.8 Update Combo v1.1.


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