I actually tried testing with two other mouse's
but I couldn't get them to replicate what's happening
because they were too slow.

I don't know if it makes a difference but the part
that plugs into the USB port was red on the two I
tried and on the one I'm using it's white.

If we restore from a backup I would still like
to wait until I have another copy of Win 7 Pro
on another HD as a backup just in case something
goes wrong.

I opened Task Manager:

https://postimg.cc/XpYNyPST - applications

https://postimg.cc/RNpS1Tvq - processes

https://postimg.cc/kVFLsnWw - services

https://postimg.cc/zH3MqK6P - performance

https://postimg.cc/VJXhsYZ1 - networking

https://postimg.cc/34fSfWNj - users

Thanks,
Robert