To disable the "Windows Media Player Network Sharing"

I am not sure WHAT I did when trying to Sync my G4 phone with my computor, but I get this media player pop-up window..... AND I can't seem to get rid of it.

I have followed the process to disable windows media player (pop-upwindow)... and it is STILL there.

When I plug-in my phone to my computer... yes I want to access files manually

Can you help