Linux

I was putting some old donated computers into a school in the Dominican Republic and they had old Windows versions and I could not update without spending some cash. So I installed Ubuntu Linux on them. It was GREAT! So pretty soon I upgraded my own PC and now I have been using Linux for a decade. The range of games is reduced - some Windows games just won't work. But I am not a "coder" and not really a hardcore gamer either - I do some engineering and some technical writing, surf internet, and watch videos. I have no idea why anyone still uses Windows except for the fact that it came on their PC when they bought it (and it cost them $200 for the privilege!).