This message was posted on behalf of Intel Corporation
I understand that audio no longer works in your computer.
Let me apologize for any inconvenience this issue may be causing to you.
In order to help you better I would like to gather more information about the configuration you have in the computer. Please attach to this thread the .txt file the Intel® System Support Utility will generate https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility
To attach a file, you must click “Use Advanced Editor” on the upper right hand corner of the response box, then the “attach” option will appear on the bottom right hand corner of the response box.
What model NUC are you using? I just did a clean RS3 16299.15 RTM install on a i7 BNH NUC and audio works fine through HDMI. I only installed the INF files and then let Windows Update fill in the rest.
forgot to update this, but installing the realtek driver again solved it.
Then intel hdmi audio came back and it works again. I just tried installing drivers again, and somehow the update must have messed things up.
im on NUC7i3BNH