Windows 8.1 laptop. Temps all normal. I was playing a game (wot) and suddenly I got the windows' screen "shutting down now" or something. I switch it on and nothing happens. I wait for 30 sec and I get no screens, nothing. We are talking about a system which loads (cold boot not that other bs) windows in 15 seconds or something. While the keyboard's lights and usb devices power up, laptop's lights switch on, nothing shows on the screen, like there is no signal. I switch it off and wait a couple of minutes. Try again, same result. Two more times, same. Last time I try it and decide to wait even more. After perhaps over a minute, I get some action and windows start loading. I get into windows, copy some files I hadn't copied and decide to do some small tests. First I check again if the temps were normal, they were. I then check for malware etc, nothing. But I notice the no wireless connection icon appearing next to the clock. I find it weird as I use wired connection. I don't know if it is out of being rusty or what, but I can't find anything that shows that I have a wired connection. I decide to turn on wireless and I get internet this way. I switched off the router, same result. WTF just happened? Device manager doesn't show any error messages. Why did it shut down? Why did it refuse to load? Why don't I have wired connection any more?