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Windows 7: BSOD after running malware bytes and while shutdowing the pc

16 Nov 2010   #1

Windows 7 , 64 bit os
BSOD after running malware bytes and while shutdowing the pc

I installed Malware byte's on my windows 7 64 os laptop..
I ran the scan for some time and paused and closed the scan as I didn't had enough time to wait till the scan is complete.
When I shut down the PC, It crashed with BCcode 0*50
I had never faced such crashes, when checked on the net at many places it is said that this crash coulb be because of a antivirus software.
Hence please help me, I have attached the dump file.
If any one have already faced this problem(with same error code 50 ) please let me know.

My System SpecsSystem Spec
16 Nov 2010   #2

Windows 7 Ultimate 32 bit

Hi and welcome to the forum. I will take a look at your dump but please read this thread, follow the instructions and post back. We will be glad to help you. We need the additional files to look at your system.

Your dump blames your USB sub system for the crash. However, this may not be the real cause.

I recommend that you completely uninstall Norton/Symantec using this removal tool: Tool. Norton is a documented cause of BSOD's on some Win 7 systems. Download and install Microsoft Security Essentials in its place and make sure Windows Firewall is turned on.

I see some outdated drivers loaded on your system. Older drivers can and do cause BSOD's. Those in red font are really obsolete. Drivers dated 2006 and earlier are XP drivers. Update the following drivers:
btwl2cap.sys Fri Apr 03 20:28:45 2009 - Broadcom Bluetooth L2CAP Service from Broadcom Corporation belonging to Bluetooth Software.

CAX_CNXT.sys Tue Jun 30 15:59:52 2009 - Conexant Modem Conexant: Support

CAX_DPV.sys Tue Jun 30 16:05:11 2009 - Conexant Modem Conexant: Support

CAXHWAZL.sys Tue Jun 30 16:01:14 2009 - Conexant Modem Conexant: Support

mdmxsdk.sys Mon Jun 19 17:27:26 2006 - Conexant Modem Diagnostic Interface x86 Driver Conexant: Support

smiifx64.sys Mon May 12 05:01:13 2008 - SMI Driver for Lenovo systemLenovo Support - Home page

Tppwr64v.sys Wed Oct 18 04:40:21 2006 - ThinkPad Pwr Mgmt Port Lenovo Support - Home page

vnaap.sys Mon Dec 29 07:10:44 2008 - This is a Windows system driver. Update it through Windows Update or the the Microsoft Download Center.

XAudio64.sys Wed Apr 29 14:21:07 2009 - Conexant Modem Audio Conexant: Support
How to updated drivers -
- I have listed links to most of the drivers in the code box above. Please use the links there to see what info I've found about those drivers.
- search Google for the name of the driver
- compare the Google results with what's installed on your system to figure out which device/program it belongs to
- visit the web site of the manufacturer of the hardware/program to get the latest drivers (DON'T use Windows Update or the Update driver function of Device Manager).
- if there are difficulties in locating them, post back with questions and someone will try and help you locate the appropriate program.

- - The most common drivers are listed on this page: Driver Reference
- - Driver manufacturer links are on this page: Drivers and Downloads
Follow all of the above suggestions, reboot and see how your system runs. Please update us and let us know. If you get another BSOD, upload it and we will go from there. If you need help with the drivers, please ask.
My System SpecsSystem Spec
25 Nov 2010   #3

Windows 7 , 64 bit os
Thank you.

Hi thank you, the issue not seen any more,

My System SpecsSystem Spec

25 Nov 2010   #4

Windows 7 Ultimate 32 bit

You are welcome.
My System SpecsSystem Spec

 BSOD after running malware bytes and while shutdowing the pc

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