Try this, Right click on the volume icon on the task bar.
Select playback devices, and under the playback tab, set the headphones as the default device.
If that makes no difference then disable the speakers.
Hope this helps.
Try this, Right click on the volume icon on the task bar.
Select playback devices, and under the playback tab, set the headphones as the default device.
If that makes no difference then disable the speakers.
Hope this helps.