Every OS has to be installed at least once, genius. A “fresh install” refers to a copy that is brand new, not laden with all the muck that comes with a pre-built. If you mess up the installation later, that’s your own fault. And what are you guys doing that requires antivirus? Jeezus, it’s like you’ve never setup a workstation before.
Maybe OSX is better for you folks, but your ignorance about other operating systems and even computers in general is mind-blowing.