BSOD Randomly on Win7

I get random BSODs with the the following technical information:

*** STOP: 0x0000007F (0x00000000000008, 0x0000000080050031, etc...)

then, when windows automatically restarts, the following message appears:

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 1033
Additional information about the problem:
BCCode: 7f
BCP1: 0000000000000008
BCP2: 0000000080050031
BCP3: 00000000000406F8
BCP4: FFFFF80002ECB304
OS Version: 6_1_7600
Service Pack: 0_0
Product: 768_1




i tried restoring Bios to default values but no effect whatsoever..

Sony support are useless, please help !!

p.s: attached is the minidump..

Info about the STOP 0x7F error: BSOD Index
Info about the STOP 0x9F error: BSOD Index

Both errors refer to networking (your Intel wireless card), so I'd suggest that you replace your networking drivers. To do this:
- download the most recent networking drivers from the website of the network card manufacturer (http://www.intel.com) .
- uninstall the networking programs/drivers from Control Panel...Programs...Uninstall a program
- install the freshly downloaded drivers
- wait and see if you get further BSOD's

Also, please update these older drivers. Don't use Windows Update or the Update drivers function of Device Manager. Visit the website of the device/program manufacturer and download the latest version from there (use Google to find out what the driver belongs to):

Code:

iaStor   iaStor.sys   Tue Apr 15 20:26:03 2008
mdmxsdk.sys  Mon Jun 19 17:27:26 2006
rimssn64.sys Tue Sep 02 04:50:00 2008
risdsn64.sys Mon Sep 22 05:54:03 2008
SFEP.sys     Fri Aug 03 01:35:53 2007
shpf.sys     Fri Aug 22 03:48:03 2008
SynTP.sys    Fri Feb 01 21:00:10 2008
tcusb.sys    Mon May 05 10:53:47 2008
xaudio64.sys Tue Nov 28 19:45:04 2006

Here's a summary of the BSOD's:

Code:

Built by: 7600.16385.amd64fre.win7_rtm.090713-1255
Debug session time: Sat Dec 26 18:22:37.856 2009 (GMT-5)
System Uptime: 0 days 23:13:14.149
BugCheck 7F, {8, 80050031, 406f8, fffff80002ecb304}
Probably caused by : NETIO.SYS ( NETIO!CompareSecurityContexts+6a )
DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT
PROCESS_NAME:  chrome.exe
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Built by: 7600.16385.amd64fre.win7_rtm.090713-1255
Debug session time: Tue Dec 29 00:11:09.578 2009 (GMT-5)
System Uptime: 1 days 13:38:41.357
BugCheck 9F, {3, fffffa80046e5060, fffff80000b9c4d8, fffffa8009109e10}
*** WARNING: Unable to verify timestamp for netw5v64.sys
*** ERROR: Module load completed but symbols could not be loaded for netw5v64.sys
Probably caused by : netw5v64.sys
DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT
PROCESS_NAME:  System