What is the best 100% free full anti virus software. Meaning its not trail version?

I need to protect my computer and I am limited on money and I need protection. What is the best free software. Not one that you need to register because that wont remove anything. Help please

What is the best 100% free full anti virus software. Meaning its not trail version?norton ghost

Avast! scored Advance on http://www.av-comparatives.org while AVG Anti-Malware (Antivirus and Antispyware combined)scored Advance+ (not Advance) but please remember that it tested the Anti-Malware not the Antivirus so it's uncertain what the antivirus alone recieved.

AVG is simple and easy to use but I recommend avast! out of the two for it's multilayer shields and protection. Avast! does require a license key that expires after 14 months (if you're using the free version of avast! you can re-register for another key for free).

If you're an advance user, you should also look into AntiVir Personal Edition Classic. It's free and it has a very high detection rate but a bit more false positives from the other two above but never the less it's detection is more powerful.

Avast! Home Edition

http://avast.com/eng/download-avast-home...

AVG Free edition

http://free.grisoft.com/

AntiVir Personal Edition Classic

http://www.free-av.com/

What is the best 100% free full anti virus software. Meaning its not trail version?software