doctorrouse

Q: MacBook Pro on start up goes to gray screen with circle and diagonal line inside circle

MacBook Pro on start up goes normal as usual. Then as the horizontal line is about to complete the screen goes gray with a circle in the middle of the screen that has a diagonal line inside the circle. Cannot get the Mac to start up. Any suggestions?

MedMan

Albany GA

MacBook Pro (17-inch Late 2011), iOS 9.2.1

Posted on Jan 25, 2016 6:32 PM

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Q: MacBook Pro on start up goes to gray screen with circle and diagonal line inside circle

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  • by lllaass,

    lllaass lllaass Jan 26, 2016 2:08 AM in response to doctorrouse
    Level 10 (187,764 points)
    Desktops
    Jan 26, 2016 2:08 AM in response to doctorrouse

    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.