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Windows 7: BSOD when installing windows updates, error 0x019

07 Apr 2014   #1

Windows 7 Home Premium 64bit
BSOD when installing windows updates, error 0x019

I recently wiped my hard drive with dban using the autonuke option. It ran fine and finished sucesfully. I then installed windows 7 home premium x64 on that same hard drive. That also ran fine. I then updated through windows update, and some updates did install, inluding service pack 1. The bsod happens when running automatic updates in windows. It downloads all the updates fine, but when it gets to installing the last few, or at least from what I can tell since the progress bar is almost full, the bsod happens. It says bad pool header 0x019 etc. Malware bytes free trial premium was running while installing the updates.

My System SpecsSystem Spec
07 Apr 2014   #2


mvac.sys appears to be the issue which is part of malwarebytes. I've never known Malwarebytes causing issues.
It might be due to you have the free trial of premium which we always recommend you disable.

The best option I can think of is to uninstall Malwarebytes altogether and then install it again by following these settings.

Untick the option to start the free trial of malwarebytes pro

*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

Use !analyze -v to get detailed debugging information.

BugCheck 19, {20, fffffa8007fa8800, fffffa8007fa8820, 402000a}

Unable to load image \??\C:\Windows\system32\drivers\mwac.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for mwac.sys
*** ERROR: Module load completed but symbols could not be loaded for mwac.sys
Probably caused by : fwpkclnt.sys ( fwpkclnt!FwpsConstructIpHeaderForTransportPacket0+20a )

Followup: MachineOwner
fffff880`07d38358 fffff800`02bf66d3 : 00000000`00000019 00000000`00000020 fffffa80`07fa8800 fffffa80`07fa8820 : nt!KeBugCheckEx
fffff880`07d38360 fffff880`0172842d : 00000000`00000008 fffff880`00000004 00000000`676e7049 fffff880`02eab0ac : nt!ExFreePool+0xda4
fffff880`07d38410 fffff880`0140a04a : 00000000`00000000 fffff880`014060c3 00000000`00000000 fffffa80`085fbe20 : tcpip!IppInspectBuildHeaders+0x65d
fffff880`07d386f0 fffff880`06375025 : 00000000`00000000 00000000`00000014 00000000`00000000 fffffa80`095e0160 : fwpkclnt!FwpsConstructIpHeaderForTransportPacket0+0x20a
fffff880`07d38790 00000000`00000000 : 00000000`00000014 00000000`00000000 fffffa80`095e0160 fffffa80`095e0174 : mwac+0x6025
There is a possible network driver related issue in there.
We will see how this goes first.
My System SpecsSystem Spec
07 Apr 2014   #3

Windows 7 Home Premium 64bit

I uninstalled malwarebytes before running the updates, and that worked, so thanks. Why is it that it is always recommended to disable the malwarebytes free premium trial?
My System SpecsSystem Spec

08 Apr 2014   #4


It's always recommended to disable it because if you have more than one real time anti virus they can conflict and cause lots of issues, in fact it makes your system less secure.
Glad you got it working, any more issues let me know.
My System SpecsSystem Spec

 BSOD when installing windows updates, error 0x019

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