I will drop a line here, as I had the same issue yesterday.
This happened after a Windows Update. Do you have sound in general on your computer? I found that after the update the sound driver is bugged, so you need to reinstall it and it'll work again.
If this is your case, you should go to the Device Manager, find Sound, click on your sound driver, uninstall it, then restart your PC and Windows will download the driver automatically. Hope this works!
MartinStoichkovRock Star 11
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