I want the best Japanese Learning software or program that is possible to download on the internet. I want one that doesn't have viruses, and is very easy to work with. In this program, I want to learn how to speak it, understand it, and write it.

some people said these are best.
you better try these site

http://www.japanesepod101.com/
http://www.nhk.or.jp/lesson/

try rossetastone.com is a great way to learn a new language, I been studying Italian and I've learn so much, so I think you will learn alot