📎 AI Summary:
The thread discusses a BSOD issue ("IRQL_NOT_LESS_OR_EQUAL" related to halmacpi.dll) experienced by a Lenovo X240 running Windows 7 Pro, with initial troubleshooting involving driver updates and system file checks. The original poster reports successfully resolving the problem after following advice, and later confirmations suggest the issue has been mitigated. Overall, the community provides guidance on driver management and system troubleshooting to address the BSOD.
The thread discusses a BSOD issue ("IRQL_NOT_LESS_OR_EQUAL" related to halmacpi.dll) experienced by a Lenovo X240 running Windows 7 Pro, with initial troubleshooting involving driver updates and system file checks. The original poster reports successfully resolving the problem after following advice, and later confirmations suggest the issue has been mitigated. Overall, the community provides guidance on driver management and system troubleshooting to address the BSOD.
Solution
kemical
Essential Member
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: MachineOwnerthe 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.
Emily Forbes
New Member
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
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