Game Freeze

I do not know why it keeps on doing this, but my game freezes around 18+ minutes. I have tried re-downloading it and tried the hextech repair tool but it's not working. It keeps on happening EVERY SINGLE GAME. My computer is an ASUS Gaming Laptop and so I don't think the PC is the problem. Also I haven't adjusted any settings on my computer and I've turned off my xbox Gamebar (because I heard it could cause game freezes). Please do help me to find a solution because it is annoying when I stare at a frozen game with the music in the backrground and I can't do anything about it.