So i went to bathroom to do washing up, after i was done i walked back to my room seing that my brothers room is pitch black and nothing is happening. I came out of my wardrobe and saw the pc turned on. House did not have any power shortages, pc (The pc that turned on) is made few months ago and hasnt done anything like this. I dont understand why would it start itself up by no reason. I have a picture from my room to my brothers. *UPDATE* OKAYY the pc when was powered on time was 20.12 it went black at 20.26 and IT JUST TURNED SCREEN ON, like if somebody moved mouse (i can see time on win10 lockscreen) . I need anwsers please.