Okay,
This is what I ended up doing only to have it surface again. I reinstalled win 7 (fresh install). After about 2 hours of running machine this is the error I received.
WhoCrashed says
Crash dump directory: C:\Windows\Minidump
Crash dumps are enabled on your computer.
On Tue 2/4/2014 5:05:18 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\020314-25989-01.dmp
This was probably caused by the following module:
ntoskrnl.exe (nt+0x80640)
Bugcheck code: 0xC4 (0x91, 0x0, 0xFFFFFA800A3A8060, 0x0)
Error:
DRIVER_VERIFIER_DETECTED_VIOLATION
file path: C:\Windows\system32\ntoskrnl.exe
product:
Microsoft® Windows® Operating System
company:
Microsoft Corporation
description: NT Kernel & System
Bug check description: This is the general bug check code for fatal errors found by Driver Verifier.
The driver switched stacks using a method that is not supported by the operating system. The only supported way to extend a kernel mode stack is by using KeExpandKernelStackAndCallout. This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Tue 2/4/2014 5:05:18 AM GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module:
ntkrnlmp.exe (nt!KeBugCheckEx+0x0)
Bugcheck code: 0xC4 (0x91, 0x0, 0xFFFFFA800A3A8060, 0x0)
Error:
DRIVER_VERIFIER_DETECTED_VIOLATION
Bug check description: This is the general bug check code for fatal errors found by Driver Verifier.
The driver switched stacks using a method that is not supported by the operating system. The only supported way to extend a kernel mode stack is by using KeExpandKernelStackAndCallout. This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
Conclusion
2 crash dumps have been found and analyzed. No offending third party drivers have been found. Consider using WhoCrashed Professional which offers more detailed analysis using symbol resolution. Also configuring your system to produce a full memory dum