I have been getting a few Macs failing to boot recently and I thought it would be a good idea to explain a few things regarding this issue.
The first thing would to make sure we understand what some of the issues could be.
How to prevent further damage to you Mac or hard drive, because it could lead to data loss!
We’ll start with the dreaded Flashing Question mark icon.
This is one of the many reasons why your Mac is not booting.
Due to the nature of this issue we need to be careful as to know what the cause is before we go any further.