Back on this builf fixed my sound hehe gonne stay on this one for an while as the new build is time bombed and wait for the RTM to come out and upgrade my main rig Eddit an reboot just screwed my raid mhh bb build
When I try to use my unattend.xml it gets stuck at "Just a moment.." I used the official ISO and opened my unattended file in System Image Manager and it showed no errors.
Well for starters its AutoUnattend.xml and not unattend.xml as you posted. and since you did not post your xml file (In a Spoiler) we can only guess what else may be wrong. ~DP
Apparently after build 15042 was required in AutoUnattend.xml when using AutoLogon otherwise it hangs at "Just a moment".