Do you have a firewall application on your computer?

Yes. I use Windows Firewall.

Different from other suggestions, I don't recommend turning off your firewall. To explain, a firewall is basically a software that filters all incoming and outgoing communications to or from your computer. Each software has its own preferred port. Different software might use the same port, or might create its own port of communication [to the internet]. It is very dangerous to turn off your Firewall since you won't have a security check when a software creates its own port.

An advantage of a firewall is that it filters communication without consuming a significant amount of processing or memory.

For compatibility, use Windows Defender, the free and reliable antivirus from Microsoft.

Read more answers: http://www.euask.com/topic/6349-Do-you-have-a-firewall-application-on-your-computer

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