Okay... you bought a MAC with OSX on it.
Ummm, its *THE* "GOOEY" OS of choice.
Just install the dang thing and move on.
You are still applying your distaste for Microsoft that you only recently fixed. (after years of bearing that burden, though you could have moved on long before you did).
Cheers. No hard feelings. I've given up on OSX being non-touchy-feely and it doing everything with the artisan in mind.