Hi, sorry to revive this thread however I felt it was not appropriate to start a new one.
I am having a similar issue as the OP. It has only happened twice so far, and both times after attempting to wake the computer from sleep. This is a brand new computer (only 1 month old) and this issue appeared this morning. The only changes I made yesterday were to uninstall Avast antivirus and install Microsoft Security Essentials. This is after having problems with Skype and reading that Avast may have been the problem.
I suspect it is a driver
of some sort however I don't have the knowledge to go through the logs. I have done memtest86 with no errors. Please find attached the results of my SF Diagnostic Tool scan. Thank you for your help in advance!