You've come to the right Place!!
Ok this is my personal favorite
AVG 8.0 - Anti-Virus, and Internet Security
Go here to download the trial -
http://www.grisoft.com/ww.download-trial
After that install it, when you get to the serial code part put this one -
8MEH-RS47Y-82HT8-GONVA-BCCCZ-DEMBR-ACED
And just finish the instalation.
And there you go man you got full Anti Virus and Internet Secury till the 2018
Dont forget to say Thanks