Blocking internet Access

Hi, bandwidth is expensive here, and i like comodo firewall access-lists but am not so good at it. I am good CISCO @ access-list though done on simulators …and kinda busy now.
can someone show me how to define a rule that would block all programs from accessing the internet.
i want to block comodo itself. but svchost may connect.
This rule will only be implemented at certain times, in other words i should b able to activate/de-activate the rule
any time i want.

thanks

You can take a look at this post for an idea about how you can achieve your goal, just remove the rules for Internet Explorer.

As far as enabling/disabling as needed, you’ll have to manually edit the rule for ‘All Applications’ and change the permissions from block to allow.