Sounds like either a setting issue, play back vs speakers.
R-click your speaker and select Playback device.

I have to do that and either select speakers , head phones or USB output..

Right Click on the Speaker icon in the System tray

Click "Playback Devices"

Select which device you wish to use and then click "Set as Default"
EXAMPLE


Background info:
http://www.thewindowsclub.com/no-sound-on-windows-8-7