Yep that is right zaeem if you are looking for a totally new security though - Comodo is free and in my humble opinion better than either of the ones you have already (both do not rate very good in the AV comparisons) but the choice as always is yours. Personally I use Kaspersky Internet Security Suite (ISS) 2013 on all my machines. PC Security, PC Internet Security, Free Desktop PC Security Protection
< it has arguably the best firewall there is.
The bottom line too is you just need to be careful yourself re surfing and emails because no ISS is totally foolproof.
The ones I gave you are on call scanners and do nt provide a proactive security that is they do not run as you surf they are used by most in SF for the stuff that the main security occasionally misses.
If you d decide to change be aware that you will need the special uninstall tool for AVG