Removing mount from GoPro Hero 4 Silver?

I just bought a GoPro Hero 4 Silver. I am not able to remove the screw of the mount that comes attached with the camera in the box. What I am trying to say is that, I can't attach any other mount to the Camera because I can't remove the existing one.
The screw seems to be very tight and shows no sign of coming out.

Read more: Removing mount from GoPro Hero 4 Silver?