yellow screen

Hi all. I've got problem. Few days ago I was playing game on my PC (Windows 10). And suddenly PC lagged hard and it showed yellow screen (not Window's yellow screen of death) with some artifacts on it. I pushed hard reset button on my PC, restarted, it went through first Windows's logo and then...

Hello im using wifi, im in despair the day before yesterday everything was ok games was running all fine but yesterday out of nowhere i keep teleporting in games, chrome loads page like 2 minutes. I tried rebooting router few times, changed antennas direction's changing usb network adapter...