BSOD during mulitasks; IRQL: NOT LESS THAN OR EQUAL

Welcome to the forum.

Code:

Start Menu\Programs\DAEMON Tools Lite	Public:Start Menu\Programs\DAEMON Tools Lite	Public

Please uninstall Daemon Tools. It uses a driver called sptd.sys which is known to cause BSODs in Windows 7.

Uninstall the software using Add/Remove Programs. Reboot the system. Once the program is uninstalled, run sptd.sys uninstaller to remove the driver from your system.

As an alternative, many people recommend the use of Total Mounter or Magic ISO

---

Reduce items at start-up. No software except anti-virus is required plus doing this improves the time for logging into windows:

• How to Change, Add, or Remove Startup Programs in Windows 7

Perform a Clean boot:

• Troubleshoot Application Conflicts by Performing a Clean Startup

Run the System File Checker that scans the of all protected Windows 7 system files and replaces incorrect corrupted, changed/modified, or damaged versions with the correct versions if possible:

• Click on the
• Type CMD on Search
• Left click and Run as Administrator
• Type SFC /scannow

Full tutorial here:

• SFC /SCANNOW Command - System File Checker

It seems that your Atheros driver is outdated. Check for possible driver updates.

If its wireless, match your device from here:

• ATHEROS Wireless drivers for Windows

If its not a wireless, match your device from here:

• ATHEROS Network drivers for Windows

Code:

Microsoft (R) Windows Debugger Version 6.2.9200.20512 X86
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\Users\admin\Downloads\BISMARCK-2-Fri_07_04_2014_193202_08\070414-21777-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is: 
Windows 7 Kernel Version 7601 (Service Pack 1) MP (2 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS Personal
Built by: 7601.18409.amd64fre.win7sp1_gdr.140303-2144
Machine Name:
Kernel base = 0xfffff800`02e63000 PsLoadedModuleList = 0xfffff800`030a6890
Debug session time: Sat Jul  5 04:39:44.222 2014 (UTC + 6:00)
System Uptime: 2 days 8:09:26.834
Loading Kernel Symbols
...............................................................
................................................................
...................................
Loading User Symbols
Loading unloaded module list
..................................................
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck D1, {16, 2, 0, fffff88006a998c8}

*** WARNING: Unable to verify timestamp for athrx.sys
*** ERROR: Module load completed but symbols could not be loaded for athrx.sys
Probably caused by : athrx.sys ( athrx+848c8 )

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

1: 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: 0000000000000016, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000000, value 0 = read operation, 1 = write operation
Arg4: fffff88006a998c8, address which referenced memory

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


READ_ADDRESS: GetPointerFromAddress: unable to read from fffff80003110100
GetUlongFromAddress: unable to read from fffff800031101c0
 0000000000000016 Nonpaged pool

CURRENT_IRQL:  2

FAULTING_IP: 
athrx+848c8
fffff880`06a998c8 0fb74016        movzx   eax,word ptr [rax+16h]

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT

BUGCHECK_STR:  0xD1

PROCESS_NAME:  firefox.exe

TAG_NOT_DEFINED_c000000f:  FFFFF88002D22FB0

TRAP_FRAME:  fffff88002d21d80 -- (.trap 0xfffff88002d21d80)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=0000000000000000 rbx=0000000000000000 rcx=fffffa800568ff88
rdx=0000000000000000 rsi=0000000000000000 rdi=0000000000000000
rip=fffff88006a998c8 rsp=fffff88002d21f10 rbp=0000000000000000
 r8=0000000000000000  r9=0000000000000000 r10=fffff88006b82098
r11=fffffa800720e3c0 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0         nv up ei ng nz na po nc
athrx+0x848c8:
fffff880`06a998c8 0fb74016        movzx   eax,word ptr [rax+16h] ds:00000000`00000016=????
Resetting default scope

LAST_CONTROL_TRANSFER:  from fffff80002ed8169 to fffff80002ed8bc0

STACK_TEXT:  
fffff880`02d21c38 fffff800`02ed8169 : 00000000`0000000a 00000000`00000016 00000000`00000002 00000000`00000000 : nt!KeBugCheckEx
fffff880`02d21c40 fffff800`02ed6de0 : fffff880`00000000 00000000`00000001 00000000`00000000 fffffa80`052471a0 : nt!KiBugCheckDispatch+0x69
fffff880`02d21d80 fffff880`06a998c8 : fffffa80`0568ff88 00000000`00000000 00000000`00000000 fffff880`02d22430 : nt!KiPageFault+0x260
fffff880`02d21f10 fffffa80`0568ff88 : 00000000`00000000 00000000`00000000 fffff880`02d22430 fffff880`043df000 : athrx+0x848c8
fffff880`02d21f18 00000000`00000000 : 00000000`00000000 fffff880`02d22430 fffff880`043df000 000004ee`00000104 : 0xfffffa80`0568ff88


STACK_COMMAND:  kb

FOLLOWUP_IP: 
athrx+848c8
fffff880`06a998c8 0fb74016        movzx   eax,word ptr [rax+16h]

SYMBOL_STACK_INDEX:  3

SYMBOL_NAME:  athrx+848c8

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: athrx

IMAGE_NAME:  athrx.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  4af48d62

FAILURE_BUCKET_ID:  X64_0xD1_athrx+848c8

BUCKET_ID:  X64_0xD1_athrx+848c8

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

1: kd> lmvm athrx
start             end                 module name
fffff880`06a15000 fffff880`06b94000   athrx    T (no symbols)           
    Loaded symbol image file: athrx.sys
    Image path: \SystemRoot\system32\DRIVERS\athrx.sys
    Image name: athrx.sys
    Timestamp:        Sat Nov 07 02:56:02 2009 (4AF48D62)
    CheckSum:         00185986
    ImageSize:        0017F000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

Make scans with the following:

Kaspersky TDSSKiller

• Anti-rootkit utility TDSSKiller

ESET online scanner:

• Free Online Virus Scanner | ESET

Hope this helps.