"Me" writes...

Using the Add/Remove programs from within the control panel - Remove the
Nvidia drivers.
restart.
Don't attempt to install any drivers yet.
Download a Detonator removal program to fully remove the remains of the
drivers.
Search for Nasty File Remover or Detonator Destroyer.
http://www.softnews.ro/public/cat/12/1/12-1-28.shtml
http://www.guru3d.com/detonator-destroyer/
Read the instruction before removing files.
After another restart then install the Latest Nvidia drivers by running the
included setup.exe

Thank you for directing me to the Detonator Destroyer utility.

Thank you as well for the civil and professional discourse.

JB