Mac Boots to Circle with Line Through It 🚫 & How to Fix It

Rarely, you may encounter a Mac that boots to a screen that shows a circle with a line through it, or a circle with a slash through it.
If you encounter a Mac booting into a circle with a line through it, read along to understand what is happening, and how to resolve the problem.
The Mac circle with a slash through it symbol looks kind of like this emoji, except it’s grayscale: 🚫

















