page_fault_in_nonpaged_area

Hi everyone, I'm new in this forum, so I'm hoping I'm posting in the right place and with the right piece of information, but I hope someone will be able to help me.
I've had a notebook (asus N51V with a T9550 and 4 GB of RAM with Windows 7 Ultimate) for over three years and I've not had any significant problem until a couple of days ago. Now, after it has completelly booted and I've opened some applications (for example Eclipse, Windows updates or even no applications) it appears the BSOD with the page_fault_in_nonpaged_area STOP: 0x00000050 and other information. I've managed to get the minidump and to do a "photo" of the BSOD with my cell. I'm attaching the minidump, but if someone need it I can put also the photo.
I've not added any new hardware for over a year and I've not installed any significant and heavy software in the last couple of months, so I do not know what can it be. To be sure I've also done the memtest86 an it did not found any error.

So if someone can help me I'd really appreciate it.

Thanks

Seems to be the Watchdog syndrome. Go to Adobe and get the latest Flash Player, Adobe - Install Adobe Flash Player