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Windows 7: BSOD on boot, ntoskrnl.exe

17 Jul 2013   #1

Windows 7 Ultimate 64 bit
BSOD on boot, ntoskrnl.exe

Recently, I have been having random BSODs on booting after the Windows 7 boot animation. There have been 4 different types of BSOD, those being SYSTEM_THREAD_EXCEPTION_NOT_HANDLED, BAD_POOL_CALLER, BAD_POOL_HEADER, and DRIVER_CORRUPTED_EXPOOL. Looking at BlueScreenView, they were all related to ntoskrnl.exe. I have attached my SF log for examination.

Thank you very much.

My System SpecsSystem Spec

17 Jul 2013   #2

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium 64 Bit SP 1

It seems to be a combined effect of COMODO Firewall Pro Sandbox Driver and avast! Virtualization Driver.
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

Use !analyze -v to get detailed debugging information.

BugCheck C5, {8, 2, 0, fffff80002dc5b05}

*** WARNING: Unable to verify timestamp for cmdguard.sys
*** ERROR: Module load completed but symbols could not be loaded for cmdguard.sys
*** WARNING: Unable to verify timestamp for aswSnx.SYS
*** ERROR: Module load completed but symbols could not be loaded for aswSnx.SYS
Probably caused by : Pool_Corruption ( nt!ExDeferredFreePool+249 )

Followup: Pool_corruption
Descriptions here:
A known situation. It happens.

Uninstall Comodo. Uninstall Avast using Avast Uninstall Utility. Use Microsoft Security Essentials as your antivirus with windows inbuilt firewall, and free MBAM as the on demand scanner.
Download, install and update those, and then run full system scans with both of them, one by one.

Let us know how it is running now.
My System SpecsSystem Spec

 BSOD on boot, ntoskrnl.exe

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