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MacBook Air display won't come on following update.

After updating my MacBook Air to 10.10.3, when I turn the power on it takes 2 minutes to power up with the apple logo and progress bar. This didn't happen before the update. Any ideas? Thanks.

MacBook Air, OS X Yosemite (10.10.3)

Posted on May 17, 2015 2:09 PM

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Posted on May 17, 2015 2:24 PM

Select Macintosh HD as the Startup Disk.

“Set the default startup disk” http://support.apple.com/kb/HT1310


Reset PRAM. http://support.apple.com/kb/PH18761?viewlocale=en_US&locale=en_US

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MacBook Air display won't come on following update.

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