I knew Windows inside and out, used it from 3.1 and could do just about anything I wanted to do and fix just about any issue. 3 years ago I moved to Mac OS and

I knew Windows inside and out, used it from 3.1 and could do just about anything I wanted to do and fix just about any issue. 3 years ago I moved to Mac OS and I am still working on getting myself to the same place.