Norton Security - slow shutdown speed

Just switched from Avast Internet Security 2015 to Norton Security (lastest version).  Now my Windows 7 Pro (64 bit) takes up to 5 mins to shutdown.  I have two Windows 8.1 pro with Norton installed and they shutdown pretty quick.

So why am I having such long shutdowns on my Windows 7 Pro laptop?

I noticed another thread where the slow shutdown has been going on since Sept 2014.  Surely you have a fix my now!