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Level 1

4 points

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

Top-ranking reply

Level 6

18,378 points

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.

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