For help fixing audio or sound problems, try the audio troubleshooter. It might be able to fix audio problems automatically.
To run the troubleshooter, select the Start button, type Troubleshoot, and then select Troubleshoot from the list of results. Select Playing Audio > Run the troubleshooter.
Try these steps:
Open Start , enter Device Manager, and select it from the list of results. Under Sound, video and game controllers, select your sound card, open it, select the Driver tab, and select Update Driver. If Windows doesn't find a new driver, look for one on the device manufacturer's website and follow their instructions.
If that didn't work, try this:
Uninstall your audio driver: open Device Manager, right-click (or press and hold) the audio driver, and select Uninstall. Restart your device and Windows will attempt to reinstall the driver.
And if that didn't work, try using the generic audio driver that comes with Windows. Here's how:
Open Device Manager, right-click (or press and hold) your audio driver > Update driver software... > Browse my computer for driver software > Let me pick from a list of device drivers on my computer, select High Definition Audio Device, select Next, and follow the instructions to install it.
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 and apps 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 you're connecting to an audio device using USB or HDMI, you might need to set that device as the default.
Open Start ,enter Sound, select it from the list of results. On the Playback tab, select a device, then Set Default.
Follow these steps:
Go to Start , enter Sound, and select Sound Control Panel from the list of results.
On the Playback tab, right-click (or press and hold) the Default Device and select Properties.
On the Enhancements tab, select the Disable all enhancements check box and try to play your audio device.
If that doesn't work, select Cancel and, on the Playback tab, select another default device (if you have one), select the Disable all enhancements check box, and try to play audio again. Do this for each default device.