Bin the resource hog. Get Avast or AVG free antivirus progs. and Zone Alarm, Kerio or Sygate firewalls. Use the search facility on the lhs of this page... search for Norton. It makes dire reading. Apparently Norton is very invasive and takes a bit of removing...but there are guys on this forum who have already done it and I'm sure that they will help you out if you should need it.