Select the Start button, type Device Manager in the search box, and then select Device Manager from the list of results. Under Sound, video and game controllers, select your sound card, open it, select the Driver tab, and then select Update Driver. If Windows doesn't find a new driver, look for one on the device manufacturer's website and follow their instructions.
Uninstall your audio driver: in Device Manager, right-click (or press and hold) the audio driver, and then select Uninstall. Restart your device and Windows will attempt to reinstall the driver.
Open Device Manager, right-click (or press and hold) your audio driver > Update driver > 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.