that is not what I expected to be honest.
Hard shutdowns like that are usually an indication of a driver fault.
It could be hardware related as well, that's basically the reason I'm trying to get a dump file produced here.
You can try this too ...in order to try and get a minidump written.
To ensure minidumps are enabled:
Go to Start, in the Search Box type: sysdm.cpl, press Enter.
Under the Advanced tab, click on the Startup and Recovery Settings... button.
Ensure that Automatically restart is unchecked.
Under the Write Debugging Information header
Select Small memory dump (256 kB) in the dropdown box (the 256kb varies).
Ensure that the Small Dump Directory is listed as %systemroot%\Minidump.
OK your way out.
Reboot if changes have been made.