Live Update Current Patch

Hello:   My comp. is running the most current version of Norton Internet Security -- active subscription. 

When I click on "apply" for the most current live update patch,  I/m advised to close Internet Explorer before the patch can be applied even tho I have NO IE programs running. 

Possibly IE is running in the background somewhere?  I checked the startup menu using msconfig and IE is not showing. 

I'm at a loss as to what to do.  Thanx for any help/suggestions.