Hi rav009 First of all great work on the guide youve put alot of work in and I found it very useful. Anyway ive just bought a laptop with Vista on it im trying to install Zonealarm but its not liking it. Is it compatible with vista? If not which is the best one to use? cheers Ok update -- I tried to install Comodo and a popup came up saying that it wasnt compatible. When i clicked ok a box came up saying windows compatibility and asked if i wanted to try again using default settings. When i clicked yes it installed it fully but then a box came up again saying there a compatability issues and i might not be getting full protection i should uninstall comodo and use windows firewall. Just rebooted my Laptop and it says in the summery section all the securaty monitors are set to off and they wont turn on.