Windows IE-10 crashes because of Norton Vulnerability Protection add-in

My system is running Windows 7 x64, Internet Explorer 10, along with NIS 2014.    IE-10, or IE-11, as both versions experience the same problem crashes randomly and will not run again, even after deleting all IE tasks.  I must reboot my system, whereas IE will operate for several minutes to several hours before crashing again.  I have narrowed  the problem to the  IE add-in named "Norton Vulnerability protection" and the 2 each  coIEPlugin's.    When these add-ins are disabled Internet Explorer runs perfectly and remains stable.   Why are there 2 coIEPlugin's ?   The crashing of IE is relatively new, as the system had run faithfully after NIS 2014 was unstalled last year.  Any ideas out there, short of removing and reinstalling NIS ????

 

Thanks.

 

Jaque