Discolored square on screen.

[Krista_7]

Small square block that is discolored on my pc screen ever since Windows 10 update and restart.....I can't even get a picture of it with snipping tool....it won't transfer. And my second monitor will not come on now....it's not even detected.

 

[basroil]

Sounds like bad drivers, just uninstall and then reinstall your graphics drivers