Inconsistent crash during games, leads to all programs not responding.

Hiya, apologies if this isn't quite in the right section or if I'm missing something.

For the past week or so, while playing games that can be taxing on a computer, the game will eventually hang and go into not responding mode. I'm typically able to alt-tab out, but any other program will also end up being not-responding. Task manager works, but is not able to end the processes. The computer will also not shut down except by force. I am able to play most other games that aren't difficult to run, for extensive periods of time without a problem. However, games such as Team Fortress 2 will eventually lead to the crash, albeit not at any consistent amount of playtime.

I've looked around on the internet, but found nothing helpful to my specific problem. I've also ran memtest86 for two passes without any errors.

If it's of any consideration, I recently disassembled my laptop to clean it out, as there was some nasty dust buildup causing it to run far too hot. There have been no other problems after the fact, except for what I've detailed.

If there's anything else that would be helpful that I can provide, please let me know. Thanks so much for any help!

Edit: Added recent crash files

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