BSOD while using safezone

I was in safe zone mode on the avast website posting a reply on these forums and all of a sudden i receive a blue screen of death and my computer restarted by itself and i decided to run a scan in safemode but detected nothing. Can someone tell me why this would have happened and where i can locate detailed information about my bsod instance on my system?

Thanks.

You can send me the latest minidump from \Windows\Minidump folder (kurtin at avast dot com). Thanks.