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Mac book pro will not boot up

My MacBook Pro will not boot up. Get gray screen with slashed circle.


MacBook Pro 13", macOS 10.14

Posted on Nov 16, 2019 5:17 PM

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Question marked as Top-ranking reply

Posted on Nov 16, 2019 5:34 PM

Is this what you see, if so You should reinstall macOS on that disk.


Prohibitory symbol

A circle with a line or slash through it means that the selected startup disk contains a Mac operating system, but it's not a macOS that your Mac can use. You should reinstall macOS on that disk.


How to reinstall macOS from macOS Recovery - Apple Support





1 reply
Question marked as Top-ranking reply

Nov 16, 2019 5:34 PM in response to Mel0nieAK

Is this what you see, if so You should reinstall macOS on that disk.


Prohibitory symbol

A circle with a line or slash through it means that the selected startup disk contains a Mac operating system, but it's not a macOS that your Mac can use. You should reinstall macOS on that disk.


How to reinstall macOS from macOS Recovery - Apple Support





Mac book pro will not boot up

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