Comodo Uninstall

I tried uninstalling comodo firewall 5.12… after a long pause there was a blue screen of death and after restart comodo started but later said ‘defense+ is not functioning properly’ and i don’t think the firewall is functioning properly either. There is no uninstall in the comodo folder and I can’t uninstall it. I downloaded comodo firewall and tried installing it but it keeps saying ‘a restart is needed to complete installation’ but after restart it keeps saying the same thing again. Any ideas how I can remove comodo now?

Please try following the advice I give in this post.