I used my laptop this morning and noticed I had no volume whatsoever.
I realized it was because I needed to update my Sound Driver from Samsung Update. The issue is that nothing happens after I download and install the Sound Driver and then restart the laptop. Samsung Update pops open with the same sound driver being available.
I am having the same problem with my Galaxy 360 Pro laptop - just noticed this morning that I had no audio. I applied the Sound Driver update and had the same issue... it supposedly installs, but then it shows up as still needing to be installed after a reboot. 😞