Yesterday i got an email from Verizon saying i had used 90% of my data limit then only a few hours later i had used 100%, thats about 2GB worth of data. I wasnt downloading anything and windows wasnt either. If i watch my task manager though, it would appear that my internet usage spikes extremly high whenever ns.exe is running. Some forums said ns.exe was a virus while others said it was norton. next to it in the task manager it says norton security. Is this actually norton? and if so, why is using so much data? and how can i make it stop?