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Windows 7: BSOD driver_irql_not_less_or_equal

30 Jun 2015   #1

Windows 7 Professional
BSOD driver_irql_not_less_or_equal

I've been getting this error recently whenever I shut down my computer

Problem signature
Problem Event Name: BlueScreen
OS Version: 6.1.7601.
Locale ID: 4105

Files that help describe the problem

Extra information about the problem
BCCode: d1
BCP1: 0000000000000000
BCP2: 0000000000000002
BCP3: 0000000000000001
BCP4: FFFFFA8023A18A07
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

I tried searching, but it seems it's coming from different drivers....
I can't tell which one of my drivers is having problems..
I uploaded my computer info and the minidump, any help would be great!

My System SpecsSystem Spec
30 Jun 2015   #2

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit

It is Avast that caused the BSOD.
BugCheck D1, {1fffa8022, 2, 1, fffffa80241df0e0}

*** WARNING: Unable to verify timestamp for aswStm.sys
*** ERROR: Module load completed but symbols could not be loaded for aswStm.sys
Probably caused by : aswStm.sys ( aswStm+4f48 )

Followup: MachineOwner
Uninstall Avast using Avast Uninstall Utility. Use Microsoft Security Essentials as your antivirus with windows inbuilt firewall, and free MBAM as the on demand scanner.

Download, install and update those, and then run full system scans with both of them, one by one, as teh installed antivirus failed.

Report us for any further BSOD after doing it.
My System SpecsSystem Spec
06 Jul 2015   #3

Windows 7 Professional

Thank you! Looks like the problem is fixed, the BSOD screen haven't shown up since!
My System SpecsSystem Spec

06 Jul 2015   #4

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit

Sounds good.

Let us know if you face any further issue.
My System SpecsSystem Spec

 BSOD driver_irql_not_less_or_equal

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