Extra Anti-virus needed?

[tgrsnpr]

I just got a pro 4 and was wondering if I would need an extra anti-virus program or should the windows defender be enough?

 

[xandros9]

Defender is OK for basic usage, you can choose to get something heavier duty to replace it if you'd like.

If you can exercise common sense to not catch a bulk of virii, then you may be fine as is.