How can I make my PC invisible


I’m new at this program and I was using ESET Smart Security

with ESET I was able to make my PC invisible in the network (university dorms) except for my friends by adding their IP addresses as a trusted zone

with COMODO I was able to get the invisible part done but with a big problem

the firewall kept asking me for every IP that tried to access my PC whether I want to block it or allow it

the question is

how can I block the entire compos with one step instead of going through every IP?

Open CIS>Firewall>Common Tasks>Stealth Ports Wizard

You can either set is as Block all incoming connections stealth ports to every one (third option)


First one giving the ip addresses you want to trust.