From Resplendence Software Projects Sp:
Whenever a computer running Windows suddenly reboots without displaying any notice or blue screen of death, the first thing that is often though about is a hardware failure. In reality, most crashes are caused by malfunctioning device drivers and kernel modules. In case of a kernel error, most computers running Windows do not show a blue screen unless they are configured to do so. Instead these systems suddenly reboot without any notice. WhoCrashed shows the drivers which have been crashing computer with a single click. Normally, debugging skills and a set of debugging tools are required to do post-mortem crash dump analysis. This program checks for available crash dump files and checks for responsible modules. In most cases it can pinpoint the offending drivers which have been causing misery on your computer system in the past. It does post-mortem crash dump analysis and presents all gathered information in a comprehensible way. By using this utility you do not need any debugging skills to be able to find out what drivers are causing trouble to your computer.