Hello everyone, My HP pavillion dv6 laptop keeps SHUTTING down after I installed windows 10. It was working fine for a while, but then windows started logging me out everytime I tried to log in. I tried to reset my pc but windows kept logging me out and eventually just started shutting down all by itself. I remember SEEING the screen saying "locking" at one POINT and I have never seen that before. I tried to reinstall windows with a USB but the laptop just forces itself to shutdown before windows can finish installing. I always have the power cord plugged in so I thought it could not be a power problem, but then I decided to take out the battery and run the laptop using the powercord alone and it shuts down a few seconds after powering on. I am supposed to be able to run the laptop using the powercord alone and no battery right? Am I not getting enought power to my laptop? MAYBE because I am in europe using an european to american power converter? the converter says 10A max 250V- . and , my power cable says input : 100-240v - 1.5A  50-60HZ and output: DC 19v --- 4.62 A

what could the problem be?I wonder if the laptop is overheating or if your power button gets stuck sometimes. My FIRST instinct screams malware to me, but you're saying that it shuts down when reinstalling Windows...