This problem can be caused both by outdated drivers which can’t work well with your device or by the newest drivers, as reported by some users. Solution 2: Update or Rollback Graphics Drivers Left-click on the newly appeared device and click the Set Default button below which should switch the sound to them as soon as it’s connected.If that is not the case, right-click anywhere in the middle of the window and check the boxes next to the Show Disabled Devices and Show Disconnected Devices Your device should now appear. You should now be able to see the playback device you want to set as default.

Stay in the Playback tab of the Sound window which just opened up.After that, locate and click on the Sounds option in order to open the same window. Right-click on the Volume icon located at the bottom right part of your screen and choose the Playback devices An alternative way would be to open the Control Panel on your PC and set the View by option to Large icons.Follow the steps below in order to change your default audio output device. New updates can sometimes change the default audio output device to HDMI when it should be set to your speakers or headphones. It’s quite possible that a recent change such as a new Windows update or new driver installed caused certain things to change. Solution 1: Change Your Audio Output Device Onboard sound disabled in BIOS – Users have reported that installing new drivers disabled the onboard sound device in BIOS and you will have to turn it back on.The problem can be caused by both new or old drivers and you should resolve your problem accordingly. Faulty drivers – It’s possible that driver issues cause the problem when streaming video and sound over HDMI.The default audio output device is changed – Some changes you make to your computers such as installing new Windows or driver updates can change the default audio output device and you will need to change it back.

Microsoft hd audio fix