One more thing I experienced with my antivirus is that I first tried the trial version. But when I purchased the full version which is supposedly good for 3 computers, the paid version is conflict with the free trial version. I need to do lots of uninstalling and reinstalling until I figured it out that I need to erase the trial version first before I can fully enjoy my paid antivirus software. This is AS/AV that I have with my Sony is totally different from Norton. For me, Norton is still the best antivirus software that I’ve tried with my 3 other machines.