Just make sure that in Control Panel/ System/ Advanced/ Startup and Recovery/ Settings/ System Failure, that you have ticked "Write an event to the System Log" If you don't have this checked a lot of helpful information will be missing from the Event Viewer.
Check any "Information" line that mentions "savedump" and you should find reference to "recovered from a bug check". This is the Stop Error that caused your problem.
"Save Dump" is not a red error message it is an "Information" line which you must locate and click on to get to the extra information. See if you can use the Filter option in the Event Viewer under the View menu (while the System folder is highlighted) to search for the "Save Dump" events. All you have to do then is use the down arrow (in the resulting window) to select "Save Dump" in the "Event Source" box. Click Apply and OK, then you will have all the "Save Dump" Information lines in one place in the Event Viewer.
Now you can click on them and get those "Bug Check" details.
You can also turn off "automatically restart after an error" so it will just halt at the fault and display the full Stop Error and blue screen.
Right-click My Computer, and then click Properties .
On the Advanced tab, click Settings under Startup and Recovery .
Click to clear the Automatically restart check box under System failure , and then click OK . The error message on a blue screen should remain on the screen so you can record the error information.