Hmm, I've done that just yesterday, and it still works. How I do it:
1 - Prep ISO with NTLITE, updates, driver integration (non-DCH), Unnattended (DCH drivers go here), tweaks everything.
2 - Boot PC from the USB drive, go get some coffee while it does it's thing.
3 - After it has booted to desktop, run the script and install AppX needed from the command line.
4 - Start each one of them, connected to the internet so they can download needed license files.
5 - Airgap the machine, do some post-install things and customizations.
...also, IIRC, SmartScreen is needed during the setup phase and first boot of the APPX, but it can be disabled afterwards, same with Windows Update and related services.
1 - Prep ISO with NTLITE, updates, driver integration (non-DCH), Unnattended (DCH drivers go here), tweaks everything.
2 - Boot PC from the USB drive, go get some coffee while it does it's thing.
3 - After it has booted to desktop, run the script and install AppX needed from the command line.
4 - Start each one of them, connected to the internet so they can download needed license files.
5 - Airgap the machine, do some post-install things and customizations.
...also, IIRC, SmartScreen is needed during the setup phase and first boot of the APPX, but it can be disabled afterwards, same with Windows Update and related services.