I already have Norton 360 version 3.6 whilst scanning for viruses security tool flashes on screen. I assumed this product is related to the security tool that I already have, I went ahead to purchase it as it was showing 33 infected viruses. before purchasing I scanned using Norton but could not remove security tool as I thought it was fully infected because everything froze unable to do task. once purchased everything included norton started to work. All in all I understood that without security tool norton was not operatable. I wish that I had read about security tool on the internet before making this purchase it was a major mistake this cost me £99.00 uk money on my creditcard. I phoned my creditcard company to stop this payment going ahead, unfortunately impossible which I thought was terrible. Although everything was explained to the advisor he suggested they will try and dispute this with the company in question.