Windows 8 BSOD page fault in none paged area

Code:
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Use !analyze -v to get detailed debugging information.

BugCheck 50, {ffffe001ae0fe008, 0, fffff801d260417d, 0}

*** WARNING: Unable to verify timestamp for vrtaucbl.sys
*** ERROR: Module load completed but symbols could not be loaded for vrtaucbl.sys

Could not read faulting driver name
Probably caused by : portcls.sys ( portcls!GetMaxMapRegisters+5 )

Followup:     MachineOwner
Hi,
I can see in the call stack vrtaucbl.sys which belongs to something called Virtual Audio Cable. This needs either updating or removing.
Ventrilo - Download
Something else you may want to consider removing as a test:
CAM_V3.sys Sat Jul 26 14:29:37 2008: CAM 3 Advanced PC monitoring software by NZXT. The CAM_V3.sys driver dates from 2008 and may not be compatible w/W10. FYI - this program also uses the WinRing library drivers - which have also been known to cause BSOD's on some Windows systems.

If the bsod continues try removing Avast as some anti virus suites can cause the above bughceck.