I'm using [b]NOD32 Smart Security[/b].. it will highly protect you even if you are in network group or just one.. [b]Registry Mechanics[/b].. Fixing my registry and [b]CCleaner[/b].. clean up my pc and run fast.. additional.. [b]Internet Cyclone[/b].. it speeds up the internet to 200% and fast the downloads... all of the above really helpful..