Mike23
5
Be Secure…
You could always try the “best” free firewall…
http://tinyurl.com/o3q3tu3
The Comodo free firewall link is soooooo long, I had to use the “tinyURL” site to shorten it. 
Been using Comodo for years & never had a problem with either it or getting anything nasty on my M/C.
It does exactly what a good firewall should.
Stay safe.