BSOD after system freezes, Driver_Power_State_Failure

After using the system for a period of time, perhaps an hour or so, the system will freeze and sometimes loses internet connection as well. No amount of waiting resolves the issues. When I select system shut down, after closing all open apps, I get a message that a background task is still running...I have to force it to shut down, as no amount of time will get it to stop running. Then I get...



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