Although this had happened to me, I made it stop by recovering my PC. But this is more of a question rather than asking for a solution, in what way would defragging cause a complication like that if it could? during those moments i had been playing either PUBG (pulic unkown battleground) or Wow (World of warcraft) Twice with pub then once with wow and figured, (i'm not dealing with this) and recovered, never had the problem since. If anyone has any input i'd love to hear it! every time i tried to find answers online i'm assuming my wording doesnt get me anywhere since the questions i find are (should i shutdown my pc after defragging).