norton internet security uninstall

Mine windows is the 7 home premium. I am not been able to uninstall the norton internet security. i try to uninstall by the:

Start > All programs > Norton Internet Security > Uninstall

and i also try to uninstall by the:

Start > Control Panel > Uninstal a program

what happens is that do not happens anything!!!!! sometimes apears if we trust on something then i click on YES still happens nothing

previously i have uninstalled something more from norton thats is not the norton internet security, but its also an norton something by the control panel

ok, i admit i am not the most inteligent ever, but can you guys help me? Do i have to re-install the norton and uninstall or there is an way to uninstal it without re-install it?

if i have to re-install where do i get the norton without paying? the norton come in mine pc for free when i have bought it and it will last for a couple of months