Im posting this here in the Newbie Forum because i think these websites will help in giving you free software that conatains no spyware adwayre or viruses...etc...
If your a newb to downloading free programs and are unsure if they contain viruses or not... these websites here will help you get the stuff you need without worrying if they contain MALWARE. They have all kinds of great 'open source' software, not just for security but for many other things...

http://www.ramsinks.com/freedom.aspx <<< MY FAVORITE

http://www.cleansoftware.org/