I asked a user to turn on driver verifier to try and get a better idea of what is crashing his computer. But when I run !verifier to make sure that he indeed turned it on I get: \n6: kd> !verifier fffff8000348fac0: Unable to get verifier list.\n\nAlso with !thread I see:\n\nPriority 14 BasePriority 13 UnusualBoost 0 ForegroundBoost 0 IoPriority 2 PagePriority 5\nChild-SP RetAddr : Args to Child : Call Site\nnt!KeBugCheckEx\nnt!PspCatchCriticalBreak+0x92\nnt! ?? ::NNGAKEGL::`string'+0x176d6\nnt!NtTerminateProcess+0xf4\nnt!KiSystemServiceCopyEnd+0x13 (TrapFrame @ fffff880`0b776f50)\nnt!KiServiceLinkage\nnt! ?? ::FNODOBFM::`string'+0x48e34\nnt!KiExceptionDispatch+0xc2\nnt!KiPageFault+0x23a (TrapFrame @ fffff880`0b777ae0)\n\nNormally I *think* I would see calls starting with "VI" meaning that the verifier caught the problem.\n\nAny ideas?\n\nCheers.