Trying to run uninstall

I am trying to uninstall Norton anti virus that came with my computer

i am trying to load trend anti virus but says it cannot download  because norton anti virus is installed

 

When i click on the Norton uninstall  program  it DOES NOT WORK.

I cannot remove it either through computer  ADD/ REMOVE PROGRAMS application either

with the old version of trend it worked with norton but with ugrade renewal it needs norton removed and i cannot

 

Any ideas