bitdefender is great..my pc has infect by trojan horse..with another antivirus can't be delete...using bitdefender the problem was solved
you use free trail version of quick heal total security or avast both are good i am using original quick heal total security
I am long time Fan of ESET and i would recommend this Antivirus to anyone. ESET NOD 32 is the best paid antivirus according to reports.
l have been using Avira AntiVir Personal ,which is free ,over than 7 years! so l view that you had better you it as a good anti-vir!, if you do not like it , you can try your best to find the other tools to have a try!
I'm using Avira . It is quite light and had been using it for the past 2 years in my PC. Never had hanging experience as compared when using few anti-virus software before.