AVDEFS in my user group on my Imac
My Mac has been acting strange lately. I did a little research (without knowledge of solving software/hardware issues) through my system, I saw a user group AVDEFS, but I'm the only user of my Mac. I removing the group several times, but it comes back, even after changing my passwords, WIFI etc.
I've already spoken with Apple support, but they could'nt find anything, so I asked Norton Support to solve this problem for me, but while they where helping me during a remote session they lost connection , up to 4 times.
Who can help me to solve this problem?
Thanks!!
iMac 21.5" 4K, macOS 10.14