Hi, I have a Dell 3847, I7, 16 gigs of memory, working flawlessly (in Windows 11), using a Hisense 55 inch TV, giving 4K @30 Hz. with an HDMI cable. The problem is when I try to load any pre-Windows/Pe-type install or utility app. It doesn't accept the display size, and vital information, okay, apply, next, etc., appears off the bottom of the screen. Also, artifacts, black 'bars" appear here and there. If I move the cursor over them, they disappear. But I still cannot access information, in order to be able to select things. The same is true for any rescue app that loads before Windows itse