I have a user whose audio keeps cutting out on his Lenovo X1 Carbon 20A7. I've written a simple .bat file to restart the Windows Audio service, but this is only a temporary measure.
So far we have done every update known to Lenovo and Microsoft, including a BIOS update.
I've also had the motherboard replaced (which solved the issue for about 3 weeks).
This has had 6 people edit it now, either help or move on please!