How to increase volume of a laptop/ PC more than its default
All you have to do is get VLC Media Player from here. (http://www.videolan.org/vlc/)
If its still not loud enough u can try pulling the bar on graphic equalizer it has as its shown in this video below (which is gives u no clue if it increases the volume or not because it has no sounds. pretty dumb but some people like to know where to click)