Ok so it finally happened again and the following is what WhoCrashed told me about the crash:
On Wed 9/28/2011 1:55:10 AM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini092711-01.dmp
This was probably caused by the following module: aswtdi.sys (aswTdi+0xA57)
Bugcheck code: 0x1000008E (0xFFFFFFFFC0000005, 0xFFFFFFFFB146B217, 0xFFFFFFFFB01AC934, 0x0)
Error: KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
file path: C:\WINDOWS\system32\drivers\aswtdi.sys
product: avast! Antivirus System
company: ALWIL Software
description: avast! TDI Filter Driver
Bug check description: This indicates that a kernel-mode program generated an exception which the error handler did not catch.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: aswtdi.sys (avast! TDI Filter Driver, ALWIL Software).
Google query: aswtdi.sys ALWIL Software KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
Odd thing is I do not use Avast for Anti Virus protection and have not had it on the computer for awhile. Can I simply remove the file in question since the software is no longer on the computer?
I have also attached the dump file itself in case it has more info.
Thanks