Which anti virus software should I use?
Norton is bloatware. It slows down your system.
I use NOD32 even though my ISP provides free McAfee.
I'd go with AVG personal...free, does the job and...norton 360 has a series of issues :)
NOD32 it's fast and it does not install a lot of crap like norton, I have no issues
AVG for sure. (free)
Norton has always given me problems.
I personally recommend AVG, its free on the internet.