[fma965]

Wow!! Marcus you are THE MAN!
Finally HDMI audio actually works on my HP Chromebox cb1-010nf (Intel Celeron 2955U )
Just one thing , I had to remove one driver from the list to build install.wim
Intel Management Engine 9.5.0.1428

It is not compatible with my chromebox model, and first W8 run was crashing.
Without it in install.wim, everything goes OK.

Glad it worked for you too, FredFF . I will remove the Management Engine driver bit from the tutorial - also, it would be best if you didn't enable automatic windows updates because if your system updates to 8.1 , booting from a USB pen drive might not work. I know this is not ideal for computers with public IP addresses but the alternative ( = no boot) is even worse

Btw. my Chromebox boots with the Management Engine driver - strange..

The ASUS chromebox does need it and the HP one doesn't... Atleast that's what i concluded from available information.