By Joseph, 4 February, 2014 Forum macOS and Mac Apps Hi, all. This is Joseph here. I was wondering how to change the media player from the default iTunes to quick time player? Please respond as soon as you can. Thanks, Joseph Options Log in or register to post comments Comments change default players Are you using a mac to do this? I am I am indeed using a mac, running Os 10.9.1 default media players First get the file you want to play in quick time then press vo shift m on the file then choose get info select quick time then choose change all. ah gotcha thanks a bunch.