You know..what I use? I go to the Windows Media Player (Now Playing/plug-ins/download plug-ins) and there download the DFX9 plug-in.

Even the free version of it will boost my sound and give me ample "presence"..the purchased version will give you much more try that I am absolutely sure it will give your laptop computers better sound performance and hopefully boost your volume.

Let me know how it works for you...

All the best !