[SOLVED] B360 mobo, no HDMI sound

[punkncat]

I just built a new system today.
Gigabyte B360M DS3H
i5 8400
G Skill RAM
Win 10 Pro

I am having no issues with the build itself, per se, but I cannot seem to get any display driver beyond the basic to install. I cannot get (onboard) HDMI audio to work. It has no issues with Analog audio. I am trying to use this to see and hear on a TV, and it's just no joy.
Every time I attempt to install the drivers they give me various error codes. I have tried the Intel driver wizard and it tells me I have an unsupported processor. I am at a loss for what to do aside from installing a cheap graphics card for the audio to work.

Ideas?

 

[punkncat]

Found the issue.

All the drivers were signed for a later build of Win 10. Once it finally upgraded past 1803 (?) everything started installing and working fine.