Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Bsod - driver_irql_not_less_or_equal

07 Feb 2015   #1

Windows 7 Home Premium 64bit.
Bsod - driver_irql_not_less_or_equal

I have been random getting BSOD, sometimes its twice a day other times it wont happen for weeks apart.

I've tried updating all my drivers after the program BlueScreenView said the problem is the Qualcomm driver (Qualcomm Atheros Ar81xx series PCI-E Gigabit Ethernet Controller) but after I did this the problem still continued.

I've attached the zip file for you guys


My System SpecsSystem Spec
07 Feb 2015   #2

Windows 10 Pro/ Windows 10 Pro Insider

Hello cannedelf, I will try to help you. You only had 2 dump files, but this is what they say.

start             end                 module name
fffff880`0538d000 fffff880`053af000   L1C62x64 T (no symbols)           
    Loaded symbol image file: L1C62x64.sys
    Image path: \SystemRoot\system32\DRIVERS\L1C62x64.sys
    Image name: L1C62x64.sys
    Timestamp:        Tue Jul 16 01:56:44 2013 (51E4EEAC)
    CheckSum:         0002912C
    ImageSize:        00022000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4
That is your Atheros NIC driver and as you can see, needs to be updated from your motherboards web site.

fffff880`03bc43d8  fffff880`01868104Unable to load image \SystemRoot\system32\DRIVERS\NSNetmon.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for NSNetmon.sys
*** ERROR: Module load completed but symbols could not be loaded for NSNetmon.sys
That is NovaShield Kernel Network Module driver Believed to be a part of BullGuard Internet Security
also, probably connected to that is

Use !analyze -v to get detailed debugging information.
BugCheck D1, {0, 2, 0, fffff880053a0c9b}
*** WARNING: Unable to verify timestamp for L1C62x64.sys
*** ERROR: Module load completed but symbols could not be loaded for L1C62x64.sys
*** WARNING: Unable to verify timestamp for afwcore.sys
*** ERROR: Module load completed but symbols could not be loaded for afwcore.sys
Probably caused by : L1C62x64.sys ( L1C62x64+6c9b )
That is your Agnitum Firewall Driver 
Followup: MachineOwner
I would uninstall Bullguard and the Firewall program if they are not connected and replace them with
Microsoft Security Essentials (Microsoft Security Essentials - Microsoft Windows)
And use Windows Firewall. Try those and see if your results are not improved.
My System SpecsSystem Spec

 Bsod - driver_irql_not_less_or_equal

Thread Tools

Similar help and support threads
Thread Forum
So this issue has occurred quite often recently, about once to twice a day; I have reinstalled OS but BSOD still happens. Please help me solve this problem, thanks a ton!
BSOD Help and Support
I had experienced a lot of BSOD in about 3 weeks, i think it have something to do with driver on my LAN card, but im not sure. Here i am attaching dumpfile.
BSOD Help and Support
bsod driver_irql_not_less_or_equal Help!
Hello. I get bsod sometimes, specifically this code. It is random, but I notice this usually happens when running the combo of Skype and load intensive programs like games. Help me find the direct cause please! Thanks.
BSOD Help and Support
Bsod driver_irql_not_less_or_equal
Hi my system seems to be running fine and stable but sometimes, when i leave my computer on over night i will wake up to the BSOD saying DRIVER_IRQL_NOT_LESS_OR_EQUAL It has happened 3 times in the past week. Im running window 7 x64 professional on a recently build i7 950 system. please...
BSOD Help and Support
bsod: driver_irql_not_less_or_equal
Hello! I have a problem with a certain type of bluescreens coming out of nowhere, short time after I installed a fresh copy of Windows 7. All my drivers are downloaded from the manufacturer site, and up to date, included my BIOS version. The two first bluescreens appeared when I was playing...
BSOD Help and Support

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 21:51.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App