Ad hoc Wi-Fi

Use an elevated command prompt.

Driver

netsh wlan show drivers

If Hosted network is supported, the output shows supported == Yes.

Hosted network

netsh wlan set hostednetwork mode=allow ssid=<enter_network_name_here> key=<enter_password_here>
netsh wlan start hostednetwork
netsh wlan show hostednetwork

You may enable ICS.

Caution: hosted network setup needs an elevated command prompt.