Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: BSOD when removing USB 2.0 cable or shutting down, ntoskrnl.exe+7cc40

21 Sep 2011   #1

Windows 7 Home Premium 64 Bit
BSOD when removing USB 2.0 cable or shutting down, ntoskrnl.exe+7cc40

Hi there,

I recently received my new rig (Alienware M14X), and have had persistent problems with it.

The main issue is that I get a BSOD every time I plug out the USB 2.0 cable running from my laptop to my Dell monitor, or sometimes when shutting the machine down.

I've tracked the error back to an issue with ntoskrnl.exe (+7cc40), but I also know this is quite a general issue.

I have tried multiple solutions (driver updating, etc), and System Restore seemed to solve this for a while, but it's happening again.

I've attached my .dmp files, and would love if someone could help on this.


My System SpecsSystem Spec
21 Sep 2011   #2

Windows 7 Ultimate x64

It's a hardware problem concerning the drivers for a camera connected to the computer made by Creative maybe a webcam or something of that nature. If you have a webcam please update the drivers or software for it from here: Creative Worldwide Support

Please fill in the rest of your system specs using the tool attached to this thread it will help us get better help for you.

Microsoft (R) Windows Debugger Version 6.12.0002.633 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.

Loading Dump File [D:\Downloads\ivan\092111-27549-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*F:\SymCache*
Executable search path is: 
Windows 7 Kernel Version 7601 (Service Pack 1) MP (8 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS Personal
Built by: 7601.17640.amd64fre.win7sp1_gdr.110622-1506
Machine Name:
Kernel base = 0xfffff800`0301a000 PsLoadedModuleList = 0xfffff800`0325f670
Debug session time: Tue Sep 20 19:59:40.350 2011 (UTC - 6:00)
System Uptime: 0 days 4:05:52.224
Loading Kernel Symbols
Loading User Symbols
Loading unloaded module list
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

Use !analyze -v to get detailed debugging information.

BugCheck A, {0, 2, 0, fffff8000309ad75}

Unable to load image \SystemRoot\system32\DRIVERS\CtClsFlt.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for CtClsFlt.sys
*** ERROR: Module load completed but symbols could not be loaded for CtClsFlt.sys
Probably caused by : CtClsFlt.sys ( CtClsFlt+156b )

Followup: MachineOwner

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

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 a kernel debugger is available get the stack backtrace.
Arg1: 0000000000000000, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000000, bitfield :
    bit 0 : value 0 = read operation, 1 = write operation
    bit 3 : value 0 = not an execute operation, 1 = execute operation (only on chips which support this level of status)
Arg4: fffff8000309ad75, address which referenced memory

Debugging Details:

READ_ADDRESS: GetPointerFromAddress: unable to read from fffff800032c9100


fffff800`0309ad75 488b00          mov     rax,qword ptr [rax]





TRAP_FRAME:  fffff880037704a0 -- (.trap 0xfffff880037704a0)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=0000000000000000 rbx=0000000000000000 rcx=fffffa800c263a98
rdx=0000000000000001 rsi=0000000000000000 rdi=0000000000000000
rip=fffff8000309ad75 rsp=fffff88003770630 rbp=0000000000000000
 r8=0000000000000000  r9=00000000000000a0 r10=0000000000000000
r11=fffffa8007329b60 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0         nv up ei pl nz ac pe cy
fffff800`0309ad75 488b00          mov     rax,qword ptr [rax] ds:05e8:00000000`00000000=????????????????
Resetting default scope

LAST_CONTROL_TRANSFER:  from fffff800030961e9 to fffff80003096c40

fffff880`03770358 fffff800`030961e9 : 00000000`0000000a 00000000`00000000 00000000`00000002 00000000`00000000 : nt!KeBugCheckEx
fffff880`03770360 fffff800`03094e60 : 00000000`00000000 fffff800`03095ed3 fffffa80`07329b60 fffffa80`0c263a90 : nt!KiBugCheckDispatch+0x69
fffff880`037704a0 fffff800`0309ad75 : fffff880`03770648 fffff880`0845fae0 00000000`00000030 fffff880`0845248a : nt!KiPageFault+0x260
fffff880`03770630 fffff880`0844c56b : fffff880`00000000 fffff880`00000000 fffffa80`00000000 fffffa80`09f27060 : nt!KeSetEvent+0x1e3
fffff880`037706a0 fffff880`00000000 : fffff880`00000000 fffffa80`00000000 fffffa80`09f27060 00000000`00000000 : CtClsFlt+0x156b
fffff880`037706a8 fffff880`00000000 : fffffa80`00000000 fffffa80`09f27060 00000000`00000000 00000000`00000000 : 0xfffff880`00000000
fffff880`037706b0 fffffa80`00000000 : fffffa80`09f27060 00000000`00000000 00000000`00000000 fffffa80`12861010 : 0xfffff880`00000000
fffff880`037706b8 fffffa80`09f27060 : 00000000`00000000 00000000`00000000 fffffa80`12861010 fffff880`0844c894 : 0xfffffa80`00000000
fffff880`037706c0 00000000`00000000 : 00000000`00000000 fffffa80`12861010 fffff880`0844c894 fffffa80`12861010 : 0xfffffa80`09f27060


fffff880`0844c56b ??              ???


SYMBOL_NAME:  CtClsFlt+156b

FOLLOWUP_NAME:  MachineOwner


IMAGE_NAME:  CtClsFlt.sys


FAILURE_BUCKET_ID:  X64_0xA_CtClsFlt+156b

BUCKET_ID:  X64_0xA_CtClsFlt+156b

Followup: MachineOwner

6: kd> lmtsmn
start             end                 module name
fffff880`0565f000 fffff880`0566f000   Accelern Accelern.sys Mon Dec 13 10:33:51 2010 (4D0658FF)
fffff880`01038000 fffff880`0108f000   ACPI     ACPI.sys     Sat Nov 20 02:19:16 2010 (4CE79294)
fffff880`03041000 fffff880`030ca000   afd      afd.sys      Sun Apr 24 20:33:58 2011 (4DB4DD96)
fffff880`055d9000 fffff880`055ef000   AgileVpn AgileVpn.sys Mon Jul 13 18:10:24 2009 (4A5BCCF0)
fffff880`01210000 fffff880`0121b000   amdxata  amdxata.sys  Fri Mar 19 10:18:18 2010 (4BA3A3CA)
fffff880`013b7000 fffff880`013c0000   atapi    atapi.sys    Mon Jul 13 17:19:47 2009 (4A5BC113)
fffff880`013c0000 fffff880`013ea000   ataport  ataport.SYS  Sat Nov 20 02:19:15 2010 (4CE79293)
fffff960`00910000 fffff960`00971000   ATMFD    ATMFD.DLL    unavailable (00000000)
fffff880`0c3a4000 fffff880`0c3cf000   AVGIDSDriver AVGIDSDriver.Sys Sun Jul 10 16:36:37 2011 (4E1A2975)
fffff880`01dba000 fffff880`01dc4000   AVGIDSEH AVGIDSEH.Sys Sun Jul 10 16:36:50 2011 (4E1A2982)
fffff880`0a9a6000 fffff880`0a9b1000   AVGIDSFilter AVGIDSFilter.Sys Sun Jul 10 16:37:05 2011 (4E1A2991)
fffff880`00fb7000 fffff880`01000000   avgldx64 avgldx64.sys Sun Jul 10 16:42:49 2011 (4E1A2AE9)
fffff880`041c3000 fffff880`041d3000   avgmfx64 avgmfx64.sys Sun Aug 07 21:41:46 2011 (4E3F5AFA)
fffff880`01dae000 fffff880`01dba000   avgrkx64 avgrkx64.sys Sun Jul 10 16:43:04 2011 (4E1A2AF8)
fffff880`01782000 fffff880`017e2000   avgtdia  avgtdia.sys  Sun Jul 10 16:46:53 2011 (4E1A2BDD)
fffff880`0561c000 fffff880`0565f000   ayhjmg01 ayhjmg01.SYS Fri Aug 07 07:30:20 2009 (4A7C2C6C)
fffff880`010c4000 fffff880`010d0000   BATTC    BATTC.SYS    Mon Jul 13 17:31:01 2009 (4A5BC3B5)
fffff880`041dc000 fffff880`041e3000   Beep     Beep.SYS     Mon Jul 13 18:00:13 2009 (4A5BCA8D)
fffff880`031e2000 fffff880`031f3000   blbdrive blbdrive.sys Mon Jul 13 17:35:59 2009 (4A5BC4DF)
fffff880`0a8d1000 fffff880`0a8ef000   bowser   bowser.sys   Tue Feb 22 21:55:04 2011 (4D649328)
fffff960`00670000 fffff960`00697000   cdd      cdd.dll      unavailable (00000000)
fffff880`04199000 fffff880`041c3000   cdrom    cdrom.sys    Sat Nov 20 02:19:20 2010 (4CE79298)
fffff880`00cc3000 fffff880`00d83000   CI       CI.dll       Sat Nov 20 06:12:36 2010 (4CE7C944)
fffff880`01d7e000 fffff880`01dae000   CLASSPNP CLASSPNP.SYS Sat Nov 20 02:19:23 2010 (4CE7929B)
fffff880`00c65000 fffff880`00cc3000   CLFS     CLFS.SYS     Mon Jul 13 17:19:57 2009 (4A5BC11D)
fffff880`04c56000 fffff880`04c5a500   CmBatt   CmBatt.sys   Mon Jul 13 17:31:03 2009 (4A5BC3B7)
fffff880`016f5000 fffff880`01767000   cng      cng.sys      Sat Nov 20 03:08:45 2010 (4CE79E2D)
fffff880`010bb000 fffff880`010c4000   compbatt compbatt.sys Mon Jul 13 17:31:02 2009 (4A5BC3B6)
fffff880`0568e000 fffff880`0569e000   CompositeBus CompositeBus.sys Sat Nov 20 03:33:17 2010 (4CE7A3ED)
fffff880`0f48a000 fffff880`0f498000   crashdmp crashdmp.sys Mon Jul 13 18:01:01 2009 (4A5BCABD)
fffff880`0844b000 fffff880`08475fe0   CtClsFlt CtClsFlt.sys Wed Jan 19 20:20:46 2011 (4D37AA0E)
fffff880`02a20000 fffff880`02a32000   dc3d     dc3d.sys     Wed May 18 02:07:24 2011 (4DD37E3C)
fffff880`031c4000 fffff880`031e2000   dfsc     dfsc.sys     Sat Nov 20 02:26:31 2010 (4CE79447)
fffff880`031b5000 fffff880`031c4000   discache discache.sys Mon Jul 13 17:37:18 2009 (4A5BC52E)
fffff880`01d68000 fffff880`01d7e000   disk     disk.sys     Mon Jul 13 17:19:57 2009 (4A5BC11D)
fffff880`0877e000 fffff880`087a0000   drmk     drmk.sys     Mon Jul 13 19:01:25 2009 (4A5BD8E5)
fffff880`02a00000 fffff880`02a13000   dump_dumpfve dump_dumpfve.sys Mon Jul 13 17:21:51 2009 (4A5BC18F)
fffff880`02a9d000 fffff880`02bf1000   dump_iaStor dump_iaStor.sys Sat Nov 06 01:44:52 2010 (4CD50774)
fffff880`087f3000 fffff880`087ff000   Dxapi    Dxapi.sys    Mon Jul 13 17:38:28 2009 (4A5BC574)
fffff880`048b7000 fffff880`049ab000   dxgkrnl  dxgkrnl.sys  Sat Nov 20 02:50:50 2010 (4CE799FA)
fffff880`049ab000 fffff880`049f1000   dxgmms1  dxgmms1.sys  Sat Nov 20 02:49:53 2010 (4CE799C1)
fffff880`01d5e000 fffff880`01d68000   EMSC     EMSC.SYS     Fri Jun 19 14:35:47 2009 (4A3BF6A3)
fffff880`0c273000 fffff880`0c2a9000   fastfat  fastfat.SYS  Mon Jul 13 17:23:28 2009 (4A5BC1F0)
fffff880`0121b000 fffff880`0122f000   fileinfo fileinfo.sys Mon Jul 13 17:34:25 2009 (4A5BC481)
fffff880`00d83000 fffff880`00dcf000   fltmgr   fltmgr.sys   Sat Nov 20 02:19:24 2010 (4CE7929C)
fffff880`01778000 fffff880`01782000   Fs_Rec   Fs_Rec.sys   Mon Jul 13 17:19:45 2009 (4A5BC111)
fffff880`01d24000 fffff880`01d5e000   fvevol   fvevol.sys   Sat Nov 20 02:24:06 2010 (4CE793B6)
fffff880`01c23000 fffff880`01c6d000   fwpkclnt fwpkclnt.sys Sat Nov 20 02:21:37 2010 (4CE79321)
fffff880`0560f000 fffff880`0561c000   GEARAspiWDM GEARAspiWDM.sys Mon May 18 06:17:04 2009 (4A1151C0)
fffff800`03603000 fffff800`0364c000   hal      hal.dll      Sat Nov 20 06:00:25 2010 (4CE7C669)
fffff880`04800000 fffff880`04824000   HDAudBus HDAudBus.sys Sat Nov 20 03:43:42 2010 (4CE7A65E)
fffff880`065dd000 fffff880`065ee000   HECIx64  HECIx64.sys  Tue Oct 19 17:33:43 2010 (4CBE2AD7)
fffff880`08484000 fffff880`0849d000   HIDCLASS HIDCLASS.SYS Sat Nov 20 03:43:49 2010 (4CE7A665)
fffff880`0849d000 fffff880`084a5080   HIDPARSE HIDPARSE.SYS Mon Jul 13 18:06:17 2009 (4A5BCBF9)
fffff880`08476000 fffff880`08484000   hidusb   hidusb.sys   Sat Nov 20 03:43:49 2010 (4CE7A665)
fffff880`0a808000 fffff880`0a8d1000   HTTP     HTTP.sys     Sat Nov 20 02:24:30 2010 (4CE793CE)
fffff880`01d1b000 fffff880`01d24000   hwpolicy hwpolicy.sys Sat Nov 20 02:18:54 2010 (4CE7927E)
fffff880`04c5b000 fffff880`04c79000   i8042prt i8042prt.sys Mon Jul 13 17:19:57 2009 (4A5BC11D)
fffff880`01263000 fffff880`013b7000   iaStor   iaStor.sys   Sat Nov 06 01:44:52 2010 (4CD50774)
fffff880`05a20000 fffff880`065dc9a0   igdkmd64 igdkmd64.sys Wed Aug 31 13:53:13 2011 (4E5E9129)
fffff880`087a0000 fffff880`087f3000   IntcDAud IntcDAud.sys Fri Oct 15 02:28:17 2010 (4CB810A1)
fffff880`0566f000 fffff880`05685000   intelppm intelppm.sys Mon Jul 13 17:19:25 2009 (4A5BC0FD)
fffff880`04c79000 fffff880`04c88000   kbdclass kbdclass.sys Mon Jul 13 17:19:50 2009 (4A5BC116)
fffff880`02a32000 fffff880`02a40000   kbdhid   kbdhid.sys   Sat Nov 20 03:33:25 2010 (4CE7A3F5)
fffff800`00bba000 fffff800`00bc4000   kdcom    kdcom.dll    Sat Feb 05 09:52:49 2011 (4D4D8061)
fffff880`04824000 fffff880`04867000   ks       ks.sys       Sat Nov 20 03:33:23 2010 (4CE7A3F3)
fffff880`016da000 fffff880`016f5000   ksecdd   ksecdd.sys   Sat Nov 20 02:21:15 2010 (4CE7930B)
fffff880`01860000 fffff880`0188b000   ksecpkg  ksecpkg.sys  Sat Nov 20 03:10:34 2010 (4CE79E9A)
fffff880`04ca0000 fffff880`04ca5200   ksthunk  ksthunk.sys  Mon Jul 13 18:00:19 2009 (4A5BCA93)
fffff880`05a00000 fffff880`05a15000   L1C62x64 L1C62x64.sys Mon Sep 27 00:36:23 2010 (4CA03B67)
fffff880`02a7f000 fffff880`02a94000   lltdio   lltdio.sys   Mon Jul 13 18:08:50 2009 (4A5BCC92)
fffff880`02a5c000 fffff880`02a7f000   luafv    luafv.sys    Mon Jul 13 17:26:13 2009 (4A5BC295)
fffff880`04c88000 fffff880`04c8ea00   ManyCam_x64 ManyCam_x64.sys Thu Mar 13 01:46:01 2008 (47D8DBB9)
fffff880`00c02000 fffff880`00c51000   mcupdate_GenuineIntel mcupdate_GenuineIntel.dll Sat Nov 20 06:03:51 2010 (4CE7C737)
fffff880`049f1000 fffff880`049ff000   monitor  monitor.sys  Mon Jul 13 17:38:52 2009 (4A5BC58C)
fffff880`05600000 fffff880`0560f000   mouclass mouclass.sys Mon Jul 13 17:19:50 2009 (4A5BC116)
fffff880`02a13000 fffff880`02a20000   mouhid   mouhid.sys   Mon Jul 13 18:00:20 2009 (4A5BCA94)
fffff880`00f9d000 fffff880`00fb7000   mountmgr mountmgr.sys Sat Nov 20 02:19:21 2010 (4CE79299)
fffff880`0a8ef000 fffff880`0a907000   mpsdrv   mpsdrv.sys   Mon Jul 13 18:08:25 2009 (4A5BCC79)
fffff880`0a907000 fffff880`0a934000   mrxsmb   mrxsmb.sys   Tue Apr 26 20:40:38 2011 (4DB78226)
fffff880`0a934000 fffff880`0a982000   mrxsmb10 mrxsmb10.sys Fri Jul 08 20:46:28 2011 (4E17C104)
fffff880`0a982000 fffff880`0a9a6000   mrxsmb20 mrxsmb20.sys Tue Apr 26 20:39:37 2011 (4DB781E9)
fffff880`013ea000 fffff880`013f5000   msahci   msahci.sys   Sat Nov 20 03:33:58 2010 (4CE7A416)
fffff880`01deb000 fffff880`01df6000   Msfs     Msfs.SYS     Mon Jul 13 17:19:47 2009 (4A5BC113)
fffff880`0108f000 fffff880`01099000   msisadrv msisadrv.sys Mon Jul 13 17:19:26 2009 (4A5BC0FE)
fffff880`0167c000 fffff880`016da000   msrpc    msrpc.sys    Sat Nov 20 02:21:56 2010 (4CE79334)
fffff880`031aa000 fffff880`031b5000   mssmbios mssmbios.sys Mon Jul 13 17:31:10 2009 (4A5BC3BE)
fffff880`01d09000 fffff880`01d1b000   mup      mup.sys      Mon Jul 13 17:23:45 2009 (4A5BC201)
fffff880`018cb000 fffff880`019be000   ndis     ndis.sys     Tue Dec 28 23:16:18 2010 (4D1AD232)
fffff880`055ef000 fffff880`055fb000   ndistapi ndistapi.sys Mon Jul 13 18:10:00 2009 (4A5BCCD8)
fffff880`040d6000 fffff880`040e9000   ndisuio  ndisuio.sys  Sat Nov 20 03:50:08 2010 (4CE7A7E0)
fffff880`10111000 fffff880`10140000   ndiswan  ndiswan.sys  Sat Nov 20 03:52:32 2010 (4CE7A870)
fffff880`0f400000 fffff880`0f415000   NDProxy  NDProxy.SYS  Sat Nov 20 03:52:20 2010 (4CE7A864)
fffff880`0310f000 fffff880`0311e000   netbios  netbios.sys  Mon Jul 13 18:09:26 2009 (4A5BCCB6)
fffff880`01600000 fffff880`01645000   netbt    netbt.sys    Sat Nov 20 02:23:18 2010 (4CE79386)
fffff880`01800000 fffff880`01860000   NETIO    NETIO.SYS    Sat Nov 20 02:23:13 2010 (4CE79381)
fffff880`04ca7000 fffff880`05512000   NETwNs64 NETwNs64.sys Tue Dec 21 10:08:43 2010 (4D10DF1B)
fffff880`01a00000 fffff880`01a11000   Npfs     Npfs.SYS     Mon Jul 13 17:19:48 2009 (4A5BC114)
fffff880`0319e000 fffff880`031aa000   nsiproxy nsiproxy.sys Mon Jul 13 17:21:02 2009 (4A5BC15E)
fffff800`0301a000 fffff800`03603000   nt       ntkrnlmp.exe Wed Jun 22 20:53:23 2011 (4E02AAA3)
fffff880`0141e000 fffff880`015c1000   Ntfs     Ntfs.sys     Thu Mar 10 20:39:39 2011 (4D79997B)
fffff880`02a40000 fffff880`02a4c000   NuidFltr NuidFltr.sys Fri Apr 08 16:58:16 2011 (4D9F9308)
fffff880`041d3000 fffff880`041dc000   Null     Null.SYS     Mon Jul 13 17:19:37 2009 (4A5BC109)
fffff880`1017b000 fffff880`10194000   nusb3hub nusb3hub.sys Wed Feb 09 22:52:32 2011 (4D537D20)
fffff880`05595000 fffff880`055c6000   nusb3xhc nusb3xhc.sys Wed Feb 09 22:52:33 2011 (4D537D21)
fffff880`1010f000 fffff880`10110180   nvBridge nvBridge.kmd Fri Feb 18 10:47:15 2011 (4D5EB0A3)
fffff880`0a9b1000 fffff880`0a9da000   nvhda64v nvhda64v.sys Thu Nov 11 16:10:36 2010 (4CDC77EC)
fffff880`0f49d000 fffff880`1010ef80   nvlddmkm nvlddmkm.sys Fri Feb 18 10:53:00 2011 (4D5EB1FC)
fffff880`01d04000 fffff880`01d08b00   nvpciflt nvpciflt.sys Fri Feb 18 10:53:43 2011 (4D5EB227)
fffff880`04083000 fffff880`040d6000   nwifi    nwifi.sys    Mon Jul 13 18:07:23 2009 (4A5BCC3B)
fffff880`0402e000 fffff880`04061f80   OA002Afx OA002Afx.sys Fri Jun 08 02:00:36 2007 (46690CA4)
fffff880`0f460000 fffff880`0f4893a0   OA002Ufd OA002Ufd.sys Tue Jun 03 03:30:37 2008 (48450F3D)
fffff880`0f415000 fffff880`0f45fd80   OA002Vid OA002Vid.sys Fri Aug 01 03:34:52 2008 (4892D8BC)
fffff880`030d3000 fffff880`030f9000   pacer    pacer.sys    Sat Nov 20 03:52:18 2010 (4CE7A862)
fffff880`010a6000 fffff880`010bb000   partmgr  partmgr.sys  Sat Nov 20 02:20:00 2010 (4CE792C0)
fffff880`00ef9000 fffff880`00f2c000   pci      pci.sys      Sat Nov 20 02:19:11 2010 (4CE7928F)
fffff880`01200000 fffff880`01210000   PCIIDEX  PCIIDEX.SYS  Mon Jul 13 17:19:48 2009 (4A5BC114)
fffff880`01767000 fffff880`01778000   pcw      pcw.sys      Mon Jul 13 17:19:27 2009 (4A5BC0FF)
fffff880`0c2b0000 fffff880`0c356000   peauth   peauth.sys   Mon Jul 13 19:01:19 2009 (4A5BD8DF)
fffff880`02a4c000 fffff880`02a5c000   point64  point64.sys  Wed May 18 02:07:20 2011 (4DD37E38)
fffff880`08741000 fffff880`0877e000   portcls  portcls.sys  Mon Jul 13 18:06:27 2009 (4A5BCC03)
fffff880`00c51000 fffff880`00c65000   PSHED    PSHED.dll    Mon Jul 13 19:32:23 2009 (4A5BE027)
fffff880`0122f000 fffff880`0123b040   PxHlpa64 PxHlpa64.sys Tue Oct 20 12:08:42 2009 (4ADDFCAA)
fffff880`04867000 fffff880`0488b000   rasl2tp  rasl2tp.sys  Sat Nov 20 03:52:34 2010 (4CE7A872)
fffff880`0488b000 fffff880`048a6000   raspppoe raspppoe.sys Mon Jul 13 18:10:17 2009 (4A5BCCE9)
fffff880`10140000 fffff880`10161000   raspptp  raspptp.sys  Sat Nov 20 03:52:31 2010 (4CE7A86F)
fffff880`10161000 fffff880`1017b000   rassstp  rassstp.sys  Mon Jul 13 18:10:25 2009 (4A5BCCF1)
fffff880`0314d000 fffff880`0319e000   rdbss    rdbss.sys    Sat Nov 20 02:27:51 2010 (4CE79497)
fffff880`04025000 fffff880`0402e000   RDPCDD   RDPCDD.sys   Mon Jul 13 18:16:34 2009 (4A5BCE62)
fffff880`041f1000 fffff880`041fa000   rdpencdd rdpencdd.sys Mon Jul 13 18:16:34 2009 (4A5BCE62)
fffff880`01de2000 fffff880`01deb000   rdprefmp rdprefmp.sys Mon Jul 13 18:16:35 2009 (4A5BCE63)
fffff880`01cca000 fffff880`01d04000   rdyboost rdyboost.sys Sat Nov 20 02:43:10 2010 (4CE7982E)
fffff880`040e9000 fffff880`04101000   rspndr   rspndr.sys   Mon Jul 13 18:08:50 2009 (4A5BCC92)
fffff880`084ac000 fffff880`08740f00   RTKVHD64 RTKVHD64.sys Thu Jan 13 19:24:28 2011 (4D2FB3DC)
fffff880`0551f000 fffff880`05575000   RtsPStor RtsPStor.sys Mon Jan 24 03:48:53 2011 (4D3D5915)
fffff880`01009000 fffff880`01038000   SCSIPORT SCSIPORT.SYS Sat Nov 20 03:34:01 2010 (4CE7A419)
fffff880`05575000 fffff880`05595000   sdbus    sdbus.sys    Sat Nov 20 02:37:42 2010 (4CE796E6)
fffff880`0c356000 fffff880`0c361000   secdrv   secdrv.SYS   Wed Sep 13 07:18:38 2006 (4508052E)
fffff880`01cc2000 fffff880`01cca000   spldr    spldr.sys    Mon May 11 10:56:27 2009 (4A0858BB)
fffff880`010d8000 fffff880`011fe000   sptd     sptd.sys     Sun Oct 11 14:55:14 2009 (4AD24632)
fffff880`04101000 fffff880`04199000   srv      srv.sys      Thu Apr 28 21:06:06 2011 (4DBA2B1E)
fffff880`0c200000 fffff880`0c269000   srv2     srv2.sys     Thu Apr 28 21:05:46 2011 (4DBA2B0A)
fffff880`0c361000 fffff880`0c392000   srvnet   srvnet.sys   Thu Apr 28 21:05:35 2011 (4DBA2AFF)
fffff880`01cb9000 fffff880`01cc2000   stdcfltn stdcfltn.sys Fri Aug 20 12:05:01 2010 (4C6EC3CD)
fffff880`04c8f000 fffff880`04c9fd00   STREAM   STREAM.SYS   Mon Jul 13 18:06:18 2009 (4A5BCBFA)
fffff880`0569e000 fffff880`0569f480   swenum   swenum.sys   Mon Jul 13 18:00:18 2009 (4A5BCA92)
fffff880`056a1000 fffff880`057fc000   SynTP    SynTP.sys    Thu Oct 14 19:31:11 2010 (4CB7AEDF)
fffff880`01a1f000 fffff880`01c23000   tcpip    tcpip.sys    Mon Jun 20 21:33:55 2011 (4E001123)
fffff880`0c392000 fffff880`0c3a4000   tcpipreg tcpipreg.sys Sat Nov 20 03:51:48 2010 (4CE7A844)
fffff880`01a11000 fffff880`01a1e000   TDI      TDI.SYS      Sat Nov 20 02:22:06 2010 (4CE7933E)
fffff880`0188b000 fffff880`018ad000   tdx      tdx.sys      Sat Nov 20 02:21:54 2010 (4CE79332)
fffff880`03139000 fffff880`0314d000   termdd   termdd.sys   Sat Nov 20 04:03:40 2010 (4CE7AB0C)
fffff960`00440000 fffff960`0044a000   TSDDD    TSDDD.dll    unavailable (00000000)
fffff880`03000000 fffff880`03026000   tunnel   tunnel.sys   Sat Nov 20 03:51:50 2010 (4CE7A846)
fffff880`065ee000 fffff880`06600000   umbus    umbus.sys    Sat Nov 20 03:44:37 2010 (4CE7A695)
fffff880`03026000 fffff880`03040c80   usbaudio usbaudio.sys Sat Nov 20 03:43:52 2010 (4CE7A668)
fffff880`08400000 fffff880`0841d000   usbccgp  usbccgp.sys  Thu Mar 24 21:24:26 2011 (4D8C0AEA)
fffff880`055c6000 fffff880`055c7f00   USBD     USBD.SYS     Thu Mar 24 21:28:59 2011 (4D8C0BFB)
fffff880`055c8000 fffff880`055d9000   usbehci  usbehci.sys  Thu Mar 24 21:29:04 2011 (4D8C0C00)
fffff880`10194000 fffff880`101ee000   usbhub   usbhub.sys   Thu Mar 24 21:24:56 2011 (4D8C0B08)
fffff880`04c00000 fffff880`04c56000   USBPORT  USBPORT.SYS  Thu Mar 24 21:29:12 2011 (4D8C0C08)
fffff880`0841d000 fffff880`0844a280   usbvideo usbvideo.sys Sat Nov 20 03:44:34 2010 (4CE7A692)
fffff880`01099000 fffff880`010a6000   vdrvroot vdrvroot.sys Mon Jul 13 18:01:31 2009 (4A5BCADB)
fffff880`041e3000 fffff880`041f1000   vga      vga.sys      Mon Jul 13 17:38:47 2009 (4A5BC587)
fffff880`04000000 fffff880`04025000   VIDEOPRT VIDEOPRT.SYS Mon Jul 13 17:38:51 2009 (4A5BC58B)
fffff880`00f2c000 fffff880`00f41000   volmgr   volmgr.sys   Sat Nov 20 02:19:28 2010 (4CE792A0)
fffff880`00f41000 fffff880`00f9d000   volmgrx  volmgrx.sys  Sat Nov 20 02:20:43 2010 (4CE792EB)
fffff880`01c6d000 fffff880`01cb9000   volsnap  volsnap.sys  Sat Nov 20 02:20:08 2010 (4CE792C8)
fffff880`05512000 fffff880`0551f000   vwifibus vwifibus.sys Mon Jul 13 18:07:21 2009 (4A5BCC39)
fffff880`030f9000 fffff880`0310f000   vwififlt vwififlt.sys Mon Jul 13 18:07:22 2009 (4A5BCC3A)
fffff880`0c269000 fffff880`0c273000   vwifimp  vwifimp.sys  Mon Jul 13 18:07:28 2009 (4A5BCC40)
fffff880`0311e000 fffff880`03139000   wanarp   wanarp.sys   Sat Nov 20 03:52:36 2010 (4CE7A874)
fffff880`01dd2000 fffff880`01de2000   watchdog watchdog.sys Mon Jul 13 17:37:35 2009 (4A5BC53F)
fffff880`00e46000 fffff880`00eea000   Wdf01000 Wdf01000.sys Mon Jul 13 17:22:07 2009 (4A5BC19F)
fffff880`00eea000 fffff880`00ef9000   WDFLDR   WDFLDR.SYS   Mon Jul 13 17:19:54 2009 (4A5BC11A)
fffff880`048a6000 fffff880`048b6000   WDKMD    WDKMD.sys    Fri Nov 26 05:02:08 2010 (4CEFA1C0)
fffff880`030ca000 fffff880`030d3000   wfplwf   wfplwf.sys   Mon Jul 13 18:09:26 2009 (4A5BCCB6)
fffff960`00080000 fffff960`00393000   win32k   win32k.sys   unavailable (00000000)
fffff880`0c3cf000 fffff880`0c3e0000   WinUsb   WinUsb.sys   Sat Nov 20 03:43:56 2010 (4CE7A66C)
fffff880`05685000 fffff880`0568e000   wmiacpi  wmiacpi.sys  Mon Jul 13 17:31:02 2009 (4A5BC3B6)
fffff880`01000000 fffff880`01009000   WMILIB   WMILIB.SYS   Mon Jul 13 17:19:51 2009 (4A5BC117)
fffff880`04062000 fffff880`04083000   WudfPf   WudfPf.sys   Sat Nov 20 03:42:44 2010 (4CE7A624)
fffff880`019be000 fffff880`019ef000   WUDFRd   WUDFRd.sys   Sat Nov 20 03:43:32 2010 (4CE7A654)

My System SpecsSystem Spec
21 Sep 2011   #3

Windows 7 Home Premium 64 Bit

Thanks for the reply, Seth!

Based on your information, I've done some digging. There are two webcams in the rig - the webcam integrated into the laptop itself, and the webcam integrated into the monitor.

The latter seems to be the culprit - the monitor is a Dell SP2309W, with an integrated Creative Technologies WebCam. However, I've hit a wall with this.

I've updated the monitor driver to the most up-to-date Dell SP2309W driver. Looking at my Device Manager, there are two Imaging Devices: an Integrated Webcam with a driver from 2006 and a Monitor Webcam with a driver from the same time. Originally, the Monitor Webcam driver was a Creative Technologies one, but I tried updating, then uninstalling and updating, and I got the BSOD each time. Now, it seems that driver has reverted to a standard driver (the 2006 one is now the same for both devices, leading me to think they both are referring to the same device, perhaps?)

Any advice on next steps - how to remove the devices completely while avoiding a BSOD? Where to find the most up-to-date driver for the monitor webcam (nothing on the Dell or Creative websites that has helped so far)?

Regarding the specs, here you go:
  • Intel(R) Core(TM) i7-2720QM CPU @ 2.20GHz
  • Alienware M14xR1
  • InsydeH2O Version 1.0 A04
  • 8.00 GB
  • WDC WD7500BPKT-75PK4T0
  • (1) Realtek High Definition Audio (2) Intel(R) Display Audio (3) Monitor Webcam (4) NVIDIA High Definition Audio (5) NVIDIA High Definition Audio (6) NVIDIA High Definition Audio (7) NVIDIA High Definition Audio (all under Sound Card)
  • (1) Intel(R) HD Graphics Family (2) NVIDIA GeForce GT 555M
  • Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
Further help would be really appreciated!

Thank you so much!


PS As a quick update, I just updated the Monitor Webcam driver to a Creative Technology driver from 2008, version (which what it was before I started trying to uninstall it). This seems to be the most up-to-date driver available... Drivers Informer: Monitor Webcam overview .

My System SpecsSystem Spec

21 Sep 2011   #4

Windows 7 Ultimate x64

Go into device manager and disable the one in the monitor (type device manager in start>search bar) and look under cameras and such in device manager and disable one of the two I guess and see if the problem goes away if it doesn't then disable the other and enable the disabled one and see if that helps. If that doesn't do it then disable them both. If you plan on using the webcam make sure which one it is you want to use then stick with that one. I'm sure that if both are enabled it is causing a hardware conflict.

Also try here for your driver updates: Drivers & Downloads
My System SpecsSystem Spec
22 Sep 2011   #5

Windows 7 Home Premium 64 Bit

Thanks Seth. After more investigation, the "Integrated Webcam" is the one in the laptop (which is also a Creative webcam), while the "Monitor Webcam" is the one in...well...

I've tried disabling both in turn in the Device Manager - the webcam in the laptop disables just fine. However, trying to disable the monitor webcam (or uninstall the drivers) just results in the BSOD again.

Is there anything to be done? I'd hate to think that whenever I use my monitor, I'll just have to deal with a BSOD when I plug out, or remove the cable and not use it, meaning I can't use the monitor as a USB hub anymore...

My System SpecsSystem Spec
23 Sep 2011   #6

Windows 7 Ultimate x64

Do you have a safely remove hardware icon down by the clock? If so are you safely removing the monitor? What I mean is are you clicking down there on the usb cable icon with a green check mark and then safely turning it off before unplugging it?
My System SpecsSystem Spec
23 Sep 2011   #7

Windows 7 Home Premium 64 Bit

No, no "safely remove" icon appears when the monitor is plugged in - only for USB keys and my external hard drive.
My System SpecsSystem Spec

 BSOD when removing USB 2.0 cable or shutting down, ntoskrnl.exe+7cc40

Thread Tools

Similar help and support threads
Thread Forum
BSOD ntoskrnl.exe 7cc40
Im getting massive BSOD's every day. I can't even use this computer most hours and it'll probably BSOD in a few minuetes. Could someone look at the txt file I included and point me in the right direction? Or if I need more info please tell me!!! Because Im going crazy with this BSOD.
BSOD Help and Support
BSOD ntoskrnl.exe+7cc40
Have received this BSOD several times while the machine has been in Sleep Mode. Normal operation is to turn the monitor off and put the computer into that mode during the night. The BSOD is the normal DRIVER_POWER_STATE_FAILURE ntoskrnl.exe caused by address ntoskrnl.exe+7cc40. Desktop...
BSOD Help and Support
BSOD every time ntoskrnl.exe+7cc40
For two weeks I am getting 2 or 3 times a day the same BSOD with ntoskrnl.exe+7cc40 with my Dell 15z Mostly it happens when I am not working on the computer. But also it happens during my work, but I did not notice a real pattern. My computer is a Dell 15z of 8 months old, 64 bits. My...
BSOD Help and Support
ntoskrnl.exe+7cc40 BSOD's
Hi, I have a new rig i built my self and it runs perfectly except the occasional BSOD and i cant for the life of me work out why... 091711-6006-01.dmp 17/09/2011 21:33:23 BAD_POOL_HEADER 0x00000019 00000000`00000003 fffff8a0`1205a820 ff8af8a0`1205a820 fffff8a0`1205a820 ...
BSOD Help and Support
Had a random BSoD, not sure what the cause, ntoskrnl.exe+7cc40, dmp in
So I do have a OC, but it was stable (Intel Burn Test, Prime95). I was playing the Binding of Isaac (flash game on steam). What is most likely the cause here?
BSOD Help and Support
BSOD ntoskrnl.exe+26ee0 ntoskrnl.exe+7cc40
Hi, I've been having this BSOD appear very randomly. IRQL_NOT_LESS_OR_EQUAL 0x0000000a (all reports in .rar file) Sometimes within 1 hour, other times as long as 24hrs+. I've got my BIOS/Drivers up to date for my CPU, Graphics Card, and Motherboard. I've rigorously tested my memory and have...
BSOD Help and Support

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 09:38.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App