How can I make my computer work again

Jul 16, 2018
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I have a dell optiplex 7010 when I turn on the computer it shows the dell screen than goes to press f1 to continue f2 for setup utilities or f5 to run diagonistic the warranty is expired I tried restorInformation the last build thinking it may because I tried to update the computer I mean the computer wasn’t like this I had some trouble running the Xbox one console on it so I wanted to make it better so I reset the pc than upgraded to windows but the
Computer has two product keys one I’m guessing for windows 7 and another one just Incase I upgraded to windows 10 but when I tried making a iso dvd using the dell website it said none of the product keys worked . When I press f8 and run the diagnostic is everything seems to work I tried resetting the hard drive but it still does the
Same thing when I run utilities I’m unsure if their would be a possible way to make the computer work again