Windows 7 IRQL_NOT_LESS_OR_EQUAL halmacpi.dll

[Tun1]

Dear All,

Good day to you.

I am using Lenovo X240 Windows 7 Pro 32 bits.
Recently i am having BSOD "IRQL_NOT_LESS_OR_EQUAL halmacpi.dll".
Please advise me the solution for this BSOD problem.
I attached the minidump file for reference.

Thanks in advance.

 

[kemical]

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck A, {404, 2, 1, 8340471e}

*** WARNING: Unable to verify timestamp for NETwsn02.sys
*** ERROR: Module load completed but symbols could not be loaded for NETwsn02.sys
Probably caused by : vwififlt.sys ( vwififlt!FilterSendNetBufferListsComplete+d2 )

Followup: MachineOwner

Hi,
the above Bugcheck is usually caused by drivers (especially if they've recently been updated), system service or Bios. The driver named as a probable cause is the windows virtual wifi driver although I can also see that your Intel WiFi driver was involved also.
Try updating the Intel WiFi driver from the Lenovo support site:
Link Removed
If you already updated this driver recently then try rolling back to the previous driver.

I'm also unfamiliar with your AV client and if the bsod continues try removing to test. Install MSE in it's place as this is ultra stable (you can always re-install later).

Let's check on Windows files by running the system file checker. Open the start menu, find command prompt, right click on it and run as admin. Type:
sfc /scannow
Press enter and await results.

Please post any new dump files.

 

[Tun1]

Hi Kemical,

Thanks for your prompt action.
I will try as your advice and get back to you when encounter BSOD again.

 

[kemical]

Sounds good. I'll await your next reply.

 

[Tun1]

Sounds good. I'll await your next reply.

After i follow the instructions, so far BSOD didn't come back yet.

Thanks a lot for your advise.

 

[kemical]

That's awesome! Thank you for updating your thread..

 

[Emily Forbes]

Hey,

The main reason behind this DRIVER_IRQL_NOT_LESS_OR_EQUAL error is driver issue. To resolve the BSOD problem, you can disable faulty driver. In order to resolve this bug check, you can visit the following link: Solve DRIVER IRQL NOT LESS OR EQUAL – Blue screen error

Hope it will help you

 

[kemical]

I think the issue is resolved Emily, see the op's last post.