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Please upload your msinfo32.nfo file. To get this: Start Menu -> Type msinfo32 into the Search programs and files box -> When it opens, go to File, Save -> Save as msinfo32.nfo and save in a place you will remember -> Let it finish the process of gathering and saving the system info -> Right click the .nfo file, click send to compressed (zipped) folder -> Upload the .zip file here.

Please upload your msinfo32.txt file. To get this: Start Menu -> Type msinfo32 into the Search programs and files box -> When it opens, go to File, Export -> Save as msinfo32.txt and save in a place you will remember -> Let it finish the process of gathering and saving the system info -> Right click the .txt file, click send to compressed (zipped) folder -> Upload the .zip file here.

Several .dmps point towards to the Intel Rapid Storage drivers (from 2010)

Code:

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

Use !analyze -v to get detailed debugging information.

BugCheck D1, {992be570, 2, 1, 8b02bda6}

Unable to load image \SystemRoot\system32\DRIVERS\iaStor.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for iaStor.sys
*** ERROR: Module load completed but symbols could not be loaded for iaStor.sys
Probably caused by : iaStor.sys ( iaStor+26da6 )

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

2: kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high.  This is usually
caused by drivers using improper addresses.
If kernel debugger is available get stack backtrace.
Arguments:
Arg1: 992be570, memory referenced
Arg2: 00000002, IRQL
Arg3: 00000001, value 0 = read operation, 1 = write operation
Arg4: 8b02bda6, address which referenced memory

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


WRITE_ADDRESS: GetPointerFromAddress: unable to read from 82ba6718
Unable to read MiSystemVaType memory at 82b86160
 992be570 

CURRENT_IRQL:  2

FAULTING_IP: 
iaStor+26da6
8b02bda6 834b20ff        or      dword ptr [ebx+20h],0FFFFFFFFh

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT

BUGCHECK_STR:  0xD1

PROCESS_NAME:  System

TAG_NOT_DEFINED_c000000f:  FFFFFFFF8D321000

TRAP_FRAME:  8d320dd0 -- (.trap 0xffffffff8d320dd0)
ErrCode = 00000002
eax=00000000 ebx=992be550 ecx=00000002 edx=85f51400 esi=85f4e000 edi=887e4b18
eip=8b02bda6 esp=8d320e44 ebp=8d320e50 iopl=0         nv up ei ng nz ac po cy
cs=0008  ss=0010  ds=0023  es=0023  fs=0030  gs=0000             efl=00010293
iaStor+0x26da6:
8b02bda6 834b20ff        or      dword ptr [ebx+20h],0FFFFFFFFh ds:0023:992be570=????????
Resetting default scope

LAST_CONTROL_TRANSFER:  from 8b02bda6 to 82a83acb

STACK_TEXT:  
8d320dd0 8b02bda6 badb0d00 85f51400 8b062c23 nt!KiTrap0E+0x2cf
WARNING: Stack unwind information not available. Following frames may be wrong.
8d320e50 8b00d490 85ee40e8 887e4b18 887e4b18 iaStor+0x26da6
8d320e68 8b00e0c4 85f57c18 887e4b18 82a7b1e8 iaStor+0x8490
8d320e84 8b00e116 01f57c18 8d320eb4 85f57c18 iaStor+0x90c4
8d320e98 8b00e72f 85f57c18 8d320eb4 8d301a00 iaStor+0x9116
8d320f34 8b02b833 85f57c18 00000000 8519fdcc iaStor+0x972f
8d320f48 82aa5855 85f50460 85f4e000 00000000 iaStor+0x26833
8d320fa4 82aa56b8 8d300120 8519fd48 00000000 nt!KiExecuteAllDpcs+0xf9
8d320ff4 82aa4e7c 8d38bc88 00000000 00000000 nt!KiRetireDpcList+0xd5
8d320ff8 8d38bc88 00000000 00000000 00000000 nt!KiDispatchInterrupt+0x2c
82aa4e7c 00000000 0000001a 00d6850f bb830000 0x8d38bc88


STACK_COMMAND:  kb

FOLLOWUP_IP: 
iaStor+26da6
8b02bda6 834b20ff        or      dword ptr [ebx+20h],0FFFFFFFFh

SYMBOL_STACK_INDEX:  1

SYMBOL_NAME:  iaStor+26da6

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: iaStor

IMAGE_NAME:  iaStor.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  4b50ca66

FAILURE_BUCKET_ID:  0xD1_iaStor+26da6

BUCKET_ID:  0xD1_iaStor+26da6

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

2: kd> lmvm iaStor
start    end        module name
8b005000 8b1b8000   iaStor   T (no symbols)           
    Loaded symbol image file: iaStor.sys
    Image path: \SystemRoot\system32\DRIVERS\iaStor.sys
    Image name: iaStor.sys
    Timestamp:        Sat Jan 16 02:04:54 2010 (4B50CA66)
    CheckSum:         0006D204
    ImageSize:        001B3000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

Please download the stable version of Intel Rapid Storage drivers from here:

• Intel® Rapid Storage Technology Version:11.2.0.1006

Another issue is outdated video card drivers:

Code:

lmvm atipmdag
start    end        module name
91616000 91b7d000   atipmdag T (no symbols)           
    Loaded symbol image file: atipmdag.sys
    Image path: \SystemRoot\system32\DRIVERS\atipmdag.sys
    Image name: atipmdag.sys
    Timestamp:        Mon Mar 15 20:38:14 2010 (4B9E4656)
    CheckSum:         005236AE
    ImageSize:        00567000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

METHOD:

Click on the Start ► Control Panel ► Programs ► Uninstall a program ► Uninstall everything related to "ATI" and reboot the system. Delete remnants of its drivers/older drivers using Driver Sweeper.

Drivers - Clean Left over Files after Uninstalling

You can update them from here: AMD Driver Autodetect or from your laptops manufacturers website.

Install all updates and Service Pack 1:

• Learn how to install Windows 7 Service Pack 1 (SP1)

Code:

Windows 7 Kernel Version 7600 MP

Perform a System File Check:

1. Click on the start
2. Type CMD on Search
3. Left click and Run as Administrator
4. Type SFC /scannow

Full tutorial here:

• SFC /SCANNOW Command - System File Checker

Upload a screenshot of your hard disk using CrystalDiskInfo:

• CrystalDiskInfo - Software - Crystal Dew World
• Screenshots and Files - Upload and Post in Seven Forums

Run Disk Check on your hard disk for file system errors and bad sectors on it:

• Disk Check

Reduce items at start-up. Nothing except anti-virus is required:

• Startup Programs - Change
• Troubleshoot Application Conflicts by Performing a Clean Startup

Let us know the results & await the .nfo file.

Remove Avast: avast! Uninstall Utility | Download aswClear for avast! Removal

Have you run SFC Scannow?
(Do that if you haven't - up to 3 times if necessary)
Reset windows update:

• Windows Update - Reset

Make scans with the following:

-Kaspersky TDSSKiller

• Anti-rootkit utility TDSSKiller

-ESET online scanner

• Free Online Virus Scanner | ESET

Install MSE:

Microsoft Security Essentials.

Recommended from a strict BSOD perspective, compatibility & stability compared to other antiviruses/internet security software. It is free and lightweight:-

• Microsoft Security Essentials - Free Antivirus for Windows
  
  • Malwarebytes : Malwarebytes Anti-Malware removes malware including viruses, spyware, worms and trojans, plus it protects your computer
    
    • Good and Free system security combination.

   Warning

Do not start the free trial of Malware Bytes; remember to deselect that option when prompted.

Run a full scan with both (separately) once downloaded, installed and updated.

Reduce items at start-up. Nothing except anti-virus is required:

• Startup Programs - Change
• Troubleshoot Application Conflicts by Performing a Clean Startup

Let us know the results.

I've requested for more help. Please wait for a reply.

In the meantime, any new BSOD-s?

Please run the instructions at Windows Update Posting Instructions and post the results

@ OP. Was your problem resolved?