I have both Vista and XP and use AVG Free on both quite successfully. I am trialling Comodo Firewall Pro (free) for the firewall as well, so far it is doing a good job.I purchased Mcafee and thought it would work but vista keeps telling me I have a compatability issue with it. I tried bypassing this prompt then once install I kept getting fatal errors untill I uninstalled. Now I need another program.
Thanks in advance