I am a big fan of Defender so far, it is doing better than other options I've used in the past with Windows 7 and before that. I have read the reviews based on the independent testing, and was astounded to be honest. Numbers don't always translate into real world experience, and I guess this is just one of those cases.
I have to say I'm a bit puzzled by the previous poster stating they read the review referred to and don't like it based off that (at least that was all that was explained).
He does have a good point though about it being a great target for future exploits, I'm not sure anyone will be able to succeed, but there is always that chance.
Hi again, silverfox. You haven't yet had an answer to your question regarding paid for programs.
It can often come down to a personal choice. But there have to be considerations for resource usage and ease of use. Your best bet is to browse for articles on the subject, study them and decide. One point. The paid versions include, as a rule of thumb, xtras such as Firewalls and other goodies. But keep in mind that paid or free, each program will be using the same basic antivirus scan mechanism, and from, the same data base for that particular organisation.
So if you feel the need for those "xtras", then, do browse and decide. Only because it was free through my resources, I used Kaspersky for a while. It proved to be quite heavy on resource usage but apparently did the job. Oddly, when I removed it and put Defender back on, Defender found a Trojan on my computer!
Avira, I used from XP days and into Vista. Also a good paid for program.
many thanks to those who replied to my question
as there are so many things to think about i will stay with Defender
for now and perhaps when i get tome to study i will change my antivirus
once again many thanks