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sofia_c16 Author

Level 1

4 points

“Do not enter sign”

My Mac book has a “do not enter” sign with a black background when turning on and won’t let me get any further into it. What’s going on and how do I fix it?

MacBook Pro 15″, macOS 10.13

Posted on Jun 7, 2020 7:46 PM

Top-ranking reply

Axel Foley

Level 10

149,268 points

Posted on Jun 7, 2020 7:53 PM

A circle with a line through it means that your startup disk contains a Mac operating system, but it's not a macOS that your Mac can use.

Follow instructions and guidelines from this article by Apple ➔ If your Mac starts up in a circle with a line through it - Apple Support.

Axel F.

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“Do not enter sign”

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