Dell XPS Laptop Shuts Down, Then Restarts

Hey all. I posted this here and in a forum with this dell model to see if anyone could assist me with this.


My laptop is a dell xps 15 9550.


I shut down my computer before i left the house. I sometimes leave computer on sometimes don't. When I came back, I noticed when i opened my laptop it was powered on which made no sense. I was close to 100 percent sure i shut it down because when i did, i made sure power was off before i closed the lid to my laptop.


I then used it for a bit and then decided to power off my laptop... it did... but then like 2-3 few seconds later it automatically powered back on itself. I had this happen once or twice months ago. However, i think when i click shut down... it actually restarted as oppose to shutdown. This time.. it shut down... then few seconds later powers back on. Has anyone had this happened? I googled this and saw a few people having this issue but when i clicked on those sites, others said they could not fix the issue. Last time i think i fixed this issue ... the one where i click shut down but it restart instead...someone told me to do some fast shutdown where doing it would immediately shut computer down when clicking shutdown. But the issue was if i do this, when i start up my laptop, it would not be as fast. Does anyone know what im talking about here? Someone on this thread mentioned this to me months ago. So i did this and my laptop had no issues turning off when i click shutdown.


So after it just powered back on, i decided to click on the windows defender security center and check for viruses. The first one i did was the basic one which was very quick. Then i did the full scan which took few hours. After each one, there were no threats, scans. However, say 15 minutes later or a bit longer, i get a notification windows defender has detected a threat. Many times my dell xps laptop would just have these notifications like windows defender scanned computer and found no threats randomly even though i never clicked on scan. Well this time, it said i had a threat and when i clicked on it, it was a trojan. The date showed today as well. Does that mean it came from today? Yes i do visit websites but not sure if that is the case. But i then removed the trojan/threat and it shows no issue there now. So when i remove it, then its fine and i don't have to worry about that anymore. So how do i fix this issue of the laptop turning off and restarting like 2-3 seconds later? When i click shutdown, thats what it does now. I know i could just hold power for a few seconds to turn it off but i know doing that is not good for laptop because that is improper shutdown.

The trojan was something called bitrep but im not 100 percent sure. But if i removed it... is that good enough? Is there a way to view what it was if i cleared my notifications though?


Could that have caused this? When i turned on my laptop earlier today, there was no issue at all.