Why is my computer just black on the screen?

I was factory resetting my computer and it said there was an error. And it said to go to Windows so I clicked that. Then the screen went black and won't come off. I have tried unplugging it and hard shutdown it. Nothing is working it is not the moniter I just tested it the computer is not giving the monster anything to display for some reason. It is under warenty I have a Lenovo computer. Is it fried? Should I just replace it?

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