Windows 7 - Random Windows 7 BSOD : error 0x00000050

New to these forums.....
I got a random BSOD while browsing the internet, mainly videos.
Here's some information from Blue Screen View.
Dump File: 02112-15818-01.dmp
2/11/12 3:33:30 PM
Bug Check String: PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code: 0x0000050
Parameter 1:ffffffff'8726f580
Parameter 2:00000'00000000
Parameter 3: fffff880'0576c6fb
Parameter 4: 0000000'0000005
caused by driver: kilf.sys
caused by address: kilf.sys+30dc0
Processor: AMD Athlon x64
Crash Address: ntoskrl.exe+7cc40
Processors Count: 2

System was once a Vista computer from retailer, updated to 7.
Any help would be appreciated!

We do need the DMP file as it contains the only record of the sequence of events leading up to the crash, what drivers were loaded, and what was responsible.

If you are overclocking STOP

You may be able to get the DMP files without crashing by booting into safe mode (F8) with networking.

To enable us to assist you with your computer's BSOD symptoms, upload the contents of your "\Windows\Minidump" folder.

The procedure:

Quote:

* Copy the contents of \Windows\Minidump to another (temporary) location somewhere on your machine.
* Zip up the copy.
* Attach the ZIP archive to your post using the "paperclip" (file attachments) button.
*If the files are too large please upload them to a file sharing service like "Rapidshare" and put a link to them in your reply.

To ensure minidumps are enabled:

Quote:

* 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.