Questions about global rules;msg500592#msg500592 It suggests running the steath ports wizard but why should we add block all ip in when all the ports are invisble

It really depends on your environment, if you’re behind a properly configured router, you can pretty well dispense with Global rules. However, if you have a direct connection to the Internet, then your PC is exposed to both directed and undirected traffic. Some of these connections you’ll want, some you won’t. In such a scenario, allowing only the connections you want, whilst blocking everything you don’t, is a good idea.

?? If I set “block all ip in”,does it mean that the rules made by steath ports wizard are useless now?

Why would you believe they’re “useless”? Even if you have a router, there’s absolutely no harm having a second line of defence. It’s simply personal choice.