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Windows 7: random bsod (0x0000007f ntoskrnl.exe)

18 Jan 2011   #1

Windows 7 Ultimate x64
random bsod (0x0000007f ntoskrnl.exe)


i randomly get bsod on this laptop over the time since purchase. i thought it might be problem with stock ram at first , so i recently purchased new rams but bsod still occured.
i used bluescreenview but do not understand the problem so i hope people from this forum can help.
attachment is the dump file.

thanks in advance

My System SpecsSystem Spec
18 Jan 2011   #2

Windows 7 Ultimate x64 SP1

Hi aiexbadboy and welcome to SF!!!
A member of the BSOD team will help you as soon as possible. So, please be patient!

I wish you a pleasant stay and quick solution to your problem!
My System SpecsSystem Spec
18 Jan 2011   #3

Windows 10 Pro x64

dwm.exe, the Desktop Window Manager was involved in the crash, run SFC SFC /SCANNOW Command - System File Checker
The dump points to the core OS file, to identify the faulting driver(s) you will need to enable driver verifier
Driver Verifier - Enable and Disable

Then upload the newly created dumps

BugCheck 7F, {8, 80050031, 6f8, fffff80002e95ec0}

Probably caused by : ntkrnlmp.exe ( nt!KiDoubleFaultAbort+b2 )


PROCESS_NAME:  dwm.exe


LAST_CONTROL_TRANSFER:  from fffff80002eccca9 to fffff80002ecd740
Update your SoftK56 Modem Driver from Copyright(c) Conexant Systems, Inc.
New drivers are available from your manufacturer's website
VSTCNXT6.SYS        fffff880`06f03000    fffff880`06fce000    0x000cb000    0x48f69046    16/10/2008 04:52:22                
VSTAZL6.SYS        fffff880`06eb1000    fffff880`06f03000    0x00052000    0x48f69096    16/10/2008 04:53:42                
VSTDPV6.SYS        fffff880`07080000    fffff880`071f4000    0x00174000    0x48f69189    16/10/2008 04:57:45
My System SpecsSystem Spec

18 Jan 2011   #4

Windows 7 Ultimate x64

thanks for the quick reply

i did the above steps

enabled verifier, it then scan after reboot, asked me if i want to restore, clicked no. after its done i went to safe mode and used SFC/ SCANNOW.
"windows resource protection did not find any integrity violations."
i then unverified.
where does it store the new dump file?

i checked google regarding dmc.exe
its the
i use on win7. (xp-vista style quicklaunch)
now it makes sense why i had random bsod since purchase of laptop because ive been using/tweak the old style quicklaunch since day1.
i'll change it back to win7 style, as well as install new modem driver and see if this helps.

thanks for the help
greatly appreciated
My System SpecsSystem Spec
18 Jan 2011   #5

Windows 10 Pro x64

where does it store the new dump file?
Dumps are stored in C:\Windows\Minidump
My System SpecsSystem Spec
18 Jan 2011   #6

Windows 7 Ultimate x64

attachment is the dump file zipped
but its not the newly generated dump file from verified and scannow though (are they suppose to create new dump file or no?)
its the dump file from bsod, which is the only one in folder, is that the one you asked?
My System SpecsSystem Spec
18 Jan 2011   #7

Windows 10 Pro x64

These are the old dumps, wait for the system to crash a few times then upload the new dumps
My System SpecsSystem Spec
19 Jan 2011   #8

Windows 7 Ultimate x64

ok, i got another bsod
installed conexant modem driver yesterday, as well as changed old style quicklaunch back to win7.
i installed new realtek wireless & nvidia driver an hour before the crash..
attachment is the new dump file

My System SpecsSystem Spec
19 Jan 2011   #9

windows 7 ultimate

Hi aiexbadboy,

Uninstall ZoneAlarm

ZoneAlarm firewall is known to be a cause of BSOD's on Windows 7 systems. Download the ZoneAlarm remover. Boot to safe mode and run the ZoneAlarm remover. Reboot. Make sure the more than adequate Windows Firewall is enabled.

Your Conexant drivers are still outdated:

CAX_CNXT.sys Fri Feb 13 21:19:32 2009
CAX_DPV.sys Fri Feb 13 21:24:50 2009
CAXHWAZL.sys Fri Feb 13 21:20:54 2009 Conexant Modemor OEM
XAudio64.sys Wed Apr 29 19:21:07 2009
My System SpecsSystem Spec
19 Jan 2011   #10

Windows 7 Ultimate 32 bit

Aiexbadboy, you can try this hotfix from Microsoft if you want to keep Zone Alarm: Stop error message when you run an application that transfers data by using the UDP protocol in Windows Server 2008 R2 or in Windows 7: "STOP 0x0000007F". The fix does not always work; but you can give it a try.
My System SpecsSystem Spec

 random bsod (0x0000007f ntoskrnl.exe)

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