Windows 7 Resolving BSOD: IRQL_NOT_LESS_OR_EQUAL Caused by halmacpi.dll on Lenovo X240

kemical

Essential Member

Joined

Aug 28, 2007

Messages

36,176

• Oct 28, 2015

• #2

Code:

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*                        Bugcheck Analysis                                    *
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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.

 

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Solution

T

Tun1

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Joined

Oct 27, 2015

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16

• Oct 28, 2015

• Thread Author
• #3

Hi Kemical,

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

 

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kemical

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Aug 28, 2007

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36,176

• Oct 29, 2015

• #4

Sounds good. I'll await your next reply.

 

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T

Tun1

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Oct 27, 2015

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• Nov 6, 2015

• Thread Author
• #5

kemical said:

Sounds good. I'll await your next reply.

Click to expand...

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

Thanks a lot for your advise.

 

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kemical

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• Nov 6, 2015

• #6

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

 

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E

Emily Forbes

New Member

Joined

Aug 5, 2015

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23

• Feb 23, 2016

• #7

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

 

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kemical

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Aug 28, 2007

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36,176

• Feb 23, 2016

• #8

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

 

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