I tried to install Avast Premier on top of the updated AIS 8, just to see and I used my License key for AIS, it then downloaded AIS 8.0.1481 which was the RTM build. It didnt update to the new one even when I tried to update manually so I had to uninstall it and install AIS 8.0.1482 again. It then says 'failed to install Avast Firewall Driver" or a similar error message and opens up a debug dump which I have attached.
I tried to repair it but it still wont install the firewall. Also I noticed a small glitch, see attached image.
Since it was an issue with the drivers, I opened Device Manager and under network adapters there was something called ‘Avast NDIS Miniport’ or something which had an exclamation mark " ! " and I uninstalled it and then I ran the installer again, over the existing software and after I restarted, it worked fine.