BSOD PAGE_FAULT_IN_NONPAGED_AREA, now laptop won't start

Hi guys,
I have a Dell Vostro 3450 running on Windows 7 64, and it has been running pretty much flawlessly since I bought it in August 2011.

A couple of hours ago I was watching a video on Youtube and all of a sudden I got a BSOD with the following error: PAGE_FAULT_IN_NONPAGED_AREA, related to the file fltmngr.sys

I restated the system, it ran fine for about 20 minutes then happened again.

I Restarted again wanting to run some diagnostics, but I got the BSOD right before the log-in screen.

Now, when I press the power button, the power light turns on for about 1 second and then turns off.
I tried to turn it on with and without battery, but at this point I don't know what else to do.

In 4 simple steps and in 40 minutes time, my healthy laptop suddenly died!!

Any idea how what it could be?

Thank you so much for your help!