kavidu

I installed windows 10 to my pc and then I installed eset internet security too.on the first boot eset opened as normal,then I updated it.then there was a warning saying "anti virus protection is non functional" and "firewall is non functional" .then I restarted the pc.but after restart ESET didn't even open. then again from the beginig I uninstalled windows and again installed windows and eset too.but same thing happens.how can I get rid of this???