IRQL_NOT_LESS_OR_EQUAL halmacpi.dll

Discussion in 'Windows 7 Blue Screen of Death (BSOD)' started by Tun1, Oct 27, 2015.

  1. Tun1

    Tun1 Member

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    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.
     

    Attached Files:

  2. kemical

    kemical Windows Forum Admin
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    Code:
    *******************************************************************************
    *                                                                             *
    *                        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:
    http://support.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-x-series-laptops/thinkpad-x240
    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 likes this.
  3. Tun1

    Tun1 Member

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    Hi Kemical,

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

    kemical Windows Forum Admin
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    Sounds good. I'll await your next reply.
     
  5. Tun1

    Tun1 Member

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

    Thanks a lot for your advise.
     
  6. kemical

    kemical Windows Forum Admin
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    That's awesome! Thank you for updating your thread.. :)
     
  7. Emily Forbes

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    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
     
  8. kemical

    kemical Windows Forum Admin
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    I think the issue is resolved Emily, see the op's last post.
     

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