BSOD on Dell l502x notebook, BAD_POOL_CALLER

Hi I am experiencing BSOD on notebook wake-up every second time.
I am running Windows 7 x64.
Any help much appreciated.
Regards

Hotspot shield is the cause, please remove it

Please remove any CD virtualization programs such as Daemon Tools and Alcohol 120%. They use a driver, found in your dmp, sptd.sys, that is notorious for causing BSODs. Use this SPTD uninstaller when you're done: DuplexSecure - Downloads
You can use MagicDisc as an alternative.

Code:

sptd.sys        fffff880`0101d000    fffff880`0117f000    0x00162000    0x4ceba9d9    23/11/2010 15:47:37

Code:

BugCheck C2, {7, 109b, 444000a, fffffa800be2ebd0}

Unable to load image \SystemRoot\system32\DRIVERS\HssDrv.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for HssDrv.sys
*** ERROR: Module load completed but symbols could not be loaded for HssDrv.sys
GetPointerFromAddress: unable to read from fffff800032c6100
Probably caused by : HssDrv.sys ( HssDrv+2bac )

Code:

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

BAD_POOL_CALLER (c2)
The current thread is making a bad pool request.  Typically this is at a bad IRQL level or double freeing the same allocation, etc.
Arguments:
Arg1: 0000000000000007, Attempt to free pool which was already freed
Arg2: 000000000000109b, (reserved)
Arg3: 0000000004440000, Memory contents of the pool block
Arg4: fffffa800cd70010, Address of the block of pool being deallocated

Debugging Details:
------------------


POOL_ADDRESS:  fffffa800cd70010 

FREED_POOL_TAG:  aPmI

BUGCHECK_STR:  0xc2_7_aPmI

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT

PROCESS_NAME:  System

CURRENT_IRQL:  0

LAST_CONTROL_TRANSFER:  from fffff800031bfbe9 to fffff80003094d00

STACK_TEXT:  
fffff880`03577fc8 fffff800`031bfbe9 : 00000000`000000c2 00000000`00000007 00000000`0000109b 00000000`04440000 : nt!KeBugCheckEx
fffff880`03577fd0 fffff880`016e9195 : 00000000`00000000 00000000`00000000 00000000`6370444e 00000000`00000000 : nt!ExDeferredFreePool+0x1201
fffff880`03578080 fffff880`06628bac : fffff880`035782c0 fffffa80`085dd018 fffffa80`085dd018 fffffa80`085dd018 : ndis!NdisFreeMemory+0x15
fffff880`035780b0 fffff880`035782c0 : fffffa80`085dd018 fffffa80`085dd018 fffffa80`085dd018 fffff880`06632100 : HssDrv+0x2bac
fffff880`035780b8 fffffa80`085dd018 : fffffa80`085dd018 fffffa80`085dd018 fffff880`06632100 00000000`00000004 : 0xfffff880`035782c0
fffff880`035780c0 fffffa80`085dd018 : fffffa80`085dd018 fffff880`06632100 00000000`00000004 fffffa80`08577cf0 : 0xfffffa80`085dd018
fffff880`035780c8 fffffa80`085dd018 : fffff880`06632100 00000000`00000004 fffffa80`08577cf0 fffffa80`0cd70010 : 0xfffffa80`085dd018
fffff880`035780d0 fffff880`06632100 : 00000000`00000004 fffffa80`08577cf0 fffffa80`0cd70010 fffffa80`085dd018 : 0xfffffa80`085dd018
fffff880`035780d8 00000000`00000004 : fffffa80`08577cf0 fffffa80`0cd70010 fffffa80`085dd018 fffffa80`00000000 : HssDrv+0xc100
fffff880`035780e0 fffffa80`08577cf0 : fffffa80`0cd70010 fffffa80`085dd018 fffffa80`00000000 00000000`00000000 : 0x4
fffff880`035780e8 fffffa80`0cd70010 : fffffa80`085dd018 fffffa80`00000000 00000000`00000000 fffff880`016e8723 : 0xfffffa80`08577cf0
fffff880`035780f0 fffffa80`085dd018 : fffffa80`00000000 00000000`00000000 fffff880`016e8723 00000000`00000000 : 0xfffffa80`0cd70010
fffff880`035780f8 fffffa80`00000000 : 00000000`00000000 fffff880`016e8723 00000000`00000000 fffffa80`0cd70010 : 0xfffffa80`085dd018
fffff880`03578100 00000000`00000000 : fffff880`016e8723 00000000`00000000 fffffa80`0cd70010 fffffa80`09475ec8 : 0xfffffa80`00000000


STACK_COMMAND:  kb

FOLLOWUP_IP: 
HssDrv+2bac
fffff880`06628bac ??              ???

SYMBOL_STACK_INDEX:  3

SYMBOL_NAME:  HssDrv+2bac

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: HssDrv

IMAGE_NAME:  HssDrv.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  4c7fe31b

FAILURE_BUCKET_ID:  X64_0xc2_7_aPmI_HssDrv+2bac

BUCKET_ID:  X64_0xc2_7_aPmI_HssDrv+2bac

Followup: MachineOwner
---------

Thanks a lot for your answer. But have you looked at the latest dump file from the zip file I attached? I googled few days ago about sptd.sys and uninstalled daemon tools, but the problem persisted and today minutes before posting here I had another BSOD

Voodoorider said:

Thanks a lot for your answer. But have you looked at the latest dump file from the zip file I attached? I googled few days ago about sptd.sys and uninstalled daemon tools, but the problem persisted and today minutes before posting here I had another BSOD

Yes i've looked into it and Hotspot shield was indeed the cause of your BSODs

Great. I have removed it (it was Expat shield to be precise) thanks once again!