I used Avast! 4.8 for more than one year, but i heard that avira has better detection rate and has less false position than avast......Although that, avast has a function that avira do not has---boot-time scan, it can scan malware and virus at booting time without disturbing the Windows memory...Am I need to install avira premium?
Firstly Avira premium is not free.Regarding F/Ps Avira has dramatically reduced the amount it reports,to say a year ago(av comparatives ).Also imho, samples sent for analysis are quickly acted upon,I sent a f/p which was updated the day after.Avast is known for not updating new malware samples quickly.Avira does not have a boot time scan,but has a rescue cd,updated daily.Regarding forums,Avast is famous for being friendly and helpful,whereas the Avira forum is more serious,much more input from moderators.
I'm only a novice, as are a lot of people on this forum, imho, Avast is perfectly adequate,but other things are important,like backing up your pc,with something like Acronis,and using programs like SandboxIE,returnil, and Comodo firewall.When I had Avast I liked it,I like Avira a bit better