solidworks 2016 clean install loads very slowly

We just upgraded to SollidWorks 2016 SP4.

It is a clean installation on Windows 7 (Dell) and SolidWorks 2015 ran great.

When we initially load the software, it takes 3-4 minutes or more to start up.

Spends unusual a lot of time on "Loading Registry" and a very long time on "Initializing VBA Engine".

After it is running, the file>open is slow and the Add-Ins window just comes up blank for quite a while before the Add-In list appears.

This is happening on several computers.

Thanks

Tom Johnston - San Diego State University

SolidworksAdministration