When we updated to WIN10 a couple of years or so ago we did two WIN 7 and two WIN8.1 all four laptops...
Took a long time as I recall getting them redone but after all finished they work click click click... No problems like you are describing at all...
We also just redid another WIN7 laptop a couple of months ago that ended up with a cracked screen. It is now on WIN10 and I am running it with a remote monitor just fine. No problems with this changeover as well... All run's CLICK CLICK CLICK
We really didn't do anything except start the action and it did all the things it needed to do by its self...
I think maybe a redo for WIN10 might be in order. That would get rid of any virus you may have picked up causing this...
Roy Ken
