Can't switch to external monitor after factory reset

Billion456

Prominent
Jul 12, 2017
2
0
510
So I have a broken laptop screen and I had it hooked up to my monitor but the laptop was really slow so I wiped it but kept windows (stupid I know) but now I can't get it to switch back to the monitor. I'm guessing I have to go through all the fresh start up stuff but I can't do it with a blank screen. Laptop is a hp pavilion 15
 

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