BSOD on Shutdown; "Driver IRQL not Less or Equal"

Hi All,

First time posting on this forum, please let me know if you need additional information. About a week ago my laptop (Asus, Windows 7, 64 bit) started to get a BSOD on shutdown. The shutdown starts as normal, then when it gets to the part where it goes to something similar to the start up screen, it quickly gives a BSOD. After the BSOD it restarts, then i'm able to shut down as normal at the start screen, no BSOD. This has happened every time i've tried shutting down for the past week. Today I tried to restore the computer to an earlier time, but got a BSOD there as well and the restoration failed.

I've attached the zip file requested in the instructions. Any help is appreciated.

Hiya and welcome to SevenForums!

Code:

BugCheck D1, {e, 2, 1, fffffa800b173c30}

Unable to load image \SystemRoot\system32\drivers\aswStm.sys, Win32 error 0n2
*** 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 )

Code:

BugCheck 1E, {0, 0, 0, 0}

Unable to load image \SystemRoot\system32\drivers\aswStm.sys, Win32 error 0n2
*** 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 )

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After uninstallation please install Microsoft Security Essentials(MSE).

Hey Archie, we timed at the same time
EDIT: Haha, 2 minute gap.

Impressive Archie!