I am Omkar and I have used many reputed and non-reputed Anti-Virus softwares and am now giving guide for buying a good antivirus softwares for your PC.
Here are a few things that you should check before buying a Antivirus software
Should be Awarded with VB100%(VB100% is a award which is presented
to those antivirus softwares who are successfully passed in virus
detection tests conducted by a British magazine named Virus Bulletin)
Check that the Antivirus you are buying releases updates aleast in
every 2-3 days(Daily updates enabled antivirus in recommended)
- If you have a PC which doesnt have internet access buy a Antivirus software which supports offline updating(Kaspersky, Quick Heal are a few which support offline updates).*
Buying and installing a Antivirus software doesnt mean that your PC is 100% protected from viruses and even if a Antivirus software guarantees that its virus detection rate is 100% its not true no antivirus software in todays market is able to detect viruses by 100%. If you are thinking that you have bought a reputed Antivirus software and now your PC is 100% protected you are wrong Antivirus softwares need maintenence they need updating and it wont detect viruses automatically you have to scan your PC for viruses so that the Antivirus can detect and remove viruses from your PC.
Few reputed products in todays market.
Kaspersky
Eset NOD32
BitDefender
Symantec(Norton)
Grisoft(AVG)
McAfee
I recommend using Kaspersky or Quick Heal. But dont go for Norton at all it will protect your system no doubt but will make your system so slow you will be fed up and remove it.
Thats my suggestions
Thank you