I can't see my screen but I can see it on an external monitor

[Badgerow30]

So I have a Dell Insipron with Win 10. It was working fine but when I went to restart the laptop the screen went black. When I hook it up through the tv it works just fine. I've updated the drivers for the video card but nothing seems to work. Pls help or should I just reset the laptop.

 

[GreyCatz]

Before embarking on a reset, try this:

Open the Settings app and select System. The opening page is Display. Scroll down to 'Multiple displays'. It might show 'Show only on 2'. Whatever the status, change it to 'Duplicate these displays'.

Cheers,
GreyCatz.