- Check your speaker and headphone connections for loose cables or the wrong jack.
- Check your power and volume levels, and try turning all the volume controls up.
- Some speakers have their own volume controls, and you might have to check them all.
- Try connecting using a different USB port.
(And remember that your speakers probably won't work when headphones are plugged in)
If the issue persists move over to the next steps
The headphone device might be disabled and hidden in Playback devices.
- Open Start > Setting > Devices
- On Bluetooth & Other devices scroll down and open Sound settings
- On the Playback tab Right-click the blank place, and then select Show Disconnected Devices and Show Disabled Devices. After that, you’ll see headphones appear in the Playback devices shown in Disabled status.
- Right-click the headphones and click Enable. After the device is enabled, if you see it not set as Default Device, highlight it and click the Set Default button (If it’s already set as default device, move on to next step)
- Click OK > Apply.
- Check to see if the problem is resolved.
NOTE: Before performing any significant repairs, back up your computer's hard drive.
If that doesn't work you can try this
Update sound drivers
- Go to Start/window and right-click
- From the list of results click Device manager
- In Device manager under sound, video and game controllers, select your sound card open it
- Select the Driver tab, and select Update Driver.
- Let it download automatically
- Then reboot system