Trying to uninstal norton trial

Question

trying to uninstal norton trial version from from a recently purchased ASUS notebook. Started 9:30pm yesterday and at 6:15pm today still going. Have tried ending task (this morning) & even turning off the system tis evening but still says running. I am thqt peed off with Norton, interferes with so many other functions of my notebook and is a pain in the rear end. How do I complete the uninstal. Real answer or I get really sh***y.