I just purchased a 2016 subscription to upgrade from the 2015 trial I'd downloaded a couple weeks ago for my windows 10 system. Once the installation process finished, I rebooted and found I had no internet access. A few minutes later, there were warnings that I had no firewall. Windows gave me the opportunity to pick one and I choose Bitdefender. It turned on, but made me reboot. When I rebooted, the same again.
I tried doing a repair - twice. I've finally given up. Is there anything else I should do or should I be applying for a refund?