This is not a specific case or emergency.
I would like to know how to close open ports, who has opened those ports and information about why those ports are open.
I know I have no trojans, virus, etc... but sometimes I find some open ports that I dont know which program did it.
Right now I've the 8086 port opened, and I still cant figure out why.
Is there any software, registry stuff or somewhere to check about all this, and close those ports?
I know everybody fix this kind of problem telling about to install a firewall, but I still feel curious about what my computer is doing and why.