It is a STOP 0x000000C2: BAD_POOL_CALLER
Device driver, ?Memory
Your crash dumps are not showing any finite probable cause. In such a situation, it is better to enable Driver Verifier to monitor the drivers. Driver Verifier - Enable and Disable
Run Driver Verifier for 24 hours or the occurrence of the next crash, whichever is earlier.
Let us know the results, with the subsequent crash dumps, if any.