I have a 2013 MacBook Air and it won't wake up from sleep. Worse, it won't let me hold down the power button to force it to power off so I can just cold boot. It just shows a black screen when I open it, and when I hold down the power button, it just goes back to sleep. Then when I wake it, it shows a black screen again, repeat step 1.

How can I use my computer again??

1 Answer 1


Regardless of the state of the Mac, holding down the power button will always kill it and allow you to cold boot. Make sure you're holding the power button down long enough—hold it down longer than you think is necessary.

  • You're right. I was holding the button down for almost ten seconds but I guess that wasn't enough. Thanks!
    – Hassan
    Commented Oct 21, 2014 at 14:49
  • Also, when I turned it on, it says "completing installation". I didn't start an update and I already installed Yosemite last week. I have no idea what's going on.
    – Hassan
    Commented Oct 21, 2014 at 14:52

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