Boot Camp / macOS Mojave / 3 TB Fusion drive If I replace the current 3 TB hard drive with a compatible SSD drive, will this fix the issue with being able to load and run boot camp on my 2012 iMac? 


If you see the alert 'Installation cannot proceed with Boot Camp configured'
Bootcamp isn't dependent on the type of drive that you use.

What matters is it's hardware compatability with the Windows version you want to run.