Unreal Engine 4 won't open (Application has been Blocked from Accessing Graphics Hardware)

I installed Unreal Engine 4.18.3. I launch it from the Epic Games launcher thing. It starts loading up. When it finishes, I get a huge black box on my screen and my task manager says it’s unresponsive. I wait a very long time to see if anything happens. I’ve even waited an hour before, nothing ever happens. I’ve added a picture so you can see what I’m talking about. Please help, I’ve been at this for DAYS. (Also: I keep getting a notification from my computer saying 'Display Driver Stopped Responding and Has Recovered)
Update: I don’t know what I did, but now I am getting a notification saying, ‘Application has been Blocked from Accessing Graphics Hardware’

try updating your graphics card drivers they may be out of date.

I’ve tried and it keeps saying I already have the latest version.