Hello,
I'm noticing a few of my users getting the Prohibitory Symbol randomly at startup. At first, I simply ran an Internet Recovery to resolve the issue, but I soon found that resetting the PRAM also fixes the problem. Some users have run into the issue multiple times though, and I'm looking for a more permanent solution. Any suggestions other than reimaging these machines? (Though, I doubt reimaging will help)
This issue primarily happens with the 2016-2017 MacBook Pros with touch bar. My firm is currently sticking with 10.12.6.
