I had same problem with screen saver not working and also constant refreshing that i could not rename any files
The solution that worked for me seems a blue tooth application was running after i...

I tried all of the available options listed and none of them work
In fact even when i use other programs it is refreshing the screen does not have to be in file explorer

I have searched everywhere to find a solution to the problem of the monitor not shutting down as set in display properties
I did the following and it is now working corrently
1. Open msconfig
2....