I downloaded window 8.1 in my usb then I when into pc and recovery because I wanted factory new pc mine is already window 8.1 so I press on delete everything and reinstall window after that I clicked deleted all of my file instead of deleting every thing because I wanted to reuse my pc (it was a suggestion) then my monitor was turned off but pc was still running and I tried to turn on and off the pc but the monitor still have the yellow light and btw when I turn on my pc I hear a beep sound don’t know what that meant a but plz help me