Can you run a full windows update and then reboot your system
Normally if an application freezes you should still be able to do a ctrl-alt-del to exit the game. If the entire system is freezing that seems odd.
Since you’re manually pulling the power that Kernel Power error is expected, as its windows detecting an abnormal shutdown.
What anti-virus are you running? Can you try disabling yoru anti-virus entirely?
Perhaps worth having a look here: https://support.fatshark.se/hc/en-us/articles/360038965013--PC-How-to-Resolve-PC-Crashes-Loss-of-Responsiveness-or-Blue-Screens-BSOD-
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