Enhanced mode IE or Norton vulnerability protection

      I   found  a  thread  from 2013  where this was asked  but  no clear answer given.   When  I was going to  reply  for  further info the cursor  would not  let me  continue  typing.  Was that to prevent an old thread  from  clogging  the new?      Maybe  the best way to ask  the 1st part is  "What  does  Norton prefer that we do?"   They  are not compatible to do both is  the Win 8 message.