CCSVCHST.exe and Nvidia Display Spanning Problem - can not proceed until ccsvchst.exe is terminated

I just updated the NIS last night, clicked live update about a dozen times to get all the updates and patch.

 

Norton Internet Security 20.1.1.2

Win 7 Pro, SP1

Nvidia Driver whql 306.97

vid cards 3 x gtx680

3 X Asus monitors

 

Anyway, when go in to the Nvidia control panel to adjust my monitors to either:

 

1/ Span 3 monitors or

2/ turn on/off different monitors

 

The dialogue box of Nvidia says that I must shut down the process ccsvchst.exe.  Ok, I go to task manager, and I can't terminate the process.

 

I disable the firewall and anti virus, and the ccsvchst.exe remains running.  

 

Any comments or suggestions?  

Thanks :smileyhappy: