Catalina Clean Install help needed
I have a late 2015 IMac currently running 10.13.6 High Sierra. I would like to do a Clean Install of Catalina as opposed to an upgrade, and have a virgin machine again.
Could somebody please explain the best way to do this, I use Time Machine and CCC as back-up utilities so no issues backing up before I do this, After the installation I intend to rebuild my iMac from the ground up as opposed to using migration assistant etc.
Any help much appreciated