Best Anti Virus Software
 

I've used several different versions over the years, from Trend Micro to Macafee and AVG.
I'd say that it comes down to how good the user interface is.
From my experience they all update their scan engines very regularly and one's only a little behind the other and vice versa until they get an update for the latest malware etc.

Then there's a question of support when you need to manually remove things from your pc, such as registry keys.

I've never tried Kaspersky, so I'll have to dowload a trial sometime and see how it goes.

Best anti virus program
 

For what it is worth, most PC Tech people I speak to recommend Avast, which is what I have been using since trying AVG and Avira, both of which were adequate for my needs.

Do Avast do a free version? Might have to give it a try

If you want the best it has to be Kaspersky 10.7. It’s used by many professionals and also recommended by many.

I use Microsoft Security Essentials...it works well for me.

Best anti virus
 

Antivirus provides an essential layer of protection from a multitude of virus, trojan, spyware, adware infection. I use avast, it is very good at detecting virus, trojan etc during a scan. i will not suggest any other free antivirus except avast, otherwise go with licensed antivirus programs