Unfortunately that did not solve the problem. This time my PC cut off with only the PSU and power light working. Everything else cut off including PC fans. I could hear white noise through the...

Hi volcanoscout, thank you for your reply. I have followed the steps you have listed and reinstalled the graphic drivers without GeForce Experience. I hope this solves the problem. I will continue...

Few weeks (after Intel spectre announcement and windows update) ago my system started randomly restarting and shutting down (cutting off) so I reinstalled windows and everything was fine until a week...