I have this problem for a long time.Especially when I start up the computer,it always crash when I open Windows Live Messenger at the same time. And today,I downloaded the new version of the Windows Live Messenger,It crashed when I opened the wlsetup-web.exe Here's the link of the memory dump: https://skydrive.live.com/?cid=ed1f396ca5ac5565&sc=documents&nl=1&uc=1&id=ED1F396CA5AC5565%211427 Thanks for helping! System:Windows 7 Home Premium SP1 32-bit RAM:3GB (2GB+1GB Dual Channel) Model:HP Compaq CQ61-209TX

No memory errors were found using memtest86+. What can I do next?

******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* APC_INDEX_MISMATCH (1) This is a kernel internal error. The most common reason to see this bugcheck is when a filesystem or a driver has a mismatched number of calls to disable and re-enable APCs. The key data item is the Thread->KernelApcDisable field. A negative value indicates that a driver has disabled APC calls without re-enabling them. A positive value indicates that the reverse is true. This check is made on exit from a system call. Arguments: Arg1: 8426c9a5, address of system function (system call) Arg2: 00000000, Thread->ApcStateIndex << 8 | Previous ApcStateIndex Arg3: 0000ffff, Thread->KernelApcDisable Arg4: 00000000, Previous KernelApcDisable Debugging Details: ------------------ FAULTING_IP: nt!NtQueryAttributesFile+0 8426c9a5 6868010000 push 168h CUSTOMER_CRASH_COUNT: 1 DEFAULT_BUCKET_ID: CODE_CORRUPTION BUGCHECK_STR: 0x1 PROCESS_NAME: iexplore.exe CURRENT_IRQL: 0 LAST_CONTROL_TRANSFER: from 771e70b4 to 84052573 STACK_TEXT: 97cadd34 771e70b4 badb0d00 02b4c500 00000000 nt!KiServiceExit2+0x17a WARNING: Frame IP not in any known module. Following frames may be wrong. 02b4c55c 00000000 00000000 00000000 00000000 0x771e70b4 STACK_COMMAND: .bugcheck ; kb CHKIMG_EXTENSION: !chkimg -lo 50 -d !nt 840521a4-840521a7 4 bytes - nt!KiFastCallEntry+e4 [ 2b e1 c1 e9:e9 ef bf f5 ] 4 errors : !nt (840521a4-840521a7) MODULE_NAME: memory_corruption IMAGE_NAME: memory_corruption FOLLOWUP_NAME: memory_corruption DEBUG_FLR_IMAGE_TIMESTAMP: 0 MEMORY_CORRUPTOR: LARGE FAILURE_BUCKET_ID: MEMORY_CORRUPTION_LARGE BUCKET_ID: MEMORY_CORRUPTION_LARGE Followup: memory_corruption --------- ---------------------------------------------------------------------------------------------- Bug Check Code 0x1: http://msdn.microsoft.com/en-us/library/ff557419(VS.85).aspx Please use memtest86+ to check your RAM. If errors were detected, contact your manufacturer Technical Support or replace the faulty one. I have seen multiple drivers that have not been updated since 2009. Please update them and uninstall all programs that you don't use. Also, perform a full scan on your disks to detect and uninstall malware programs. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified IT Professional: Enterprise Administrator

Hi, First, I suggest that you may take following steps to prevent an error like this from happening again: 1. Download and install updates and device drivers for your computer from Windows Update. 2. Scan your computer for computer viruses. 3. Check your hard disk for errors. I checked the dump file and get the same result as Mr.X. If the issue problem still occurs after you following the suggestion above. Please also refer the following to troubleshooting: I find you use 3G RAM via Dual Channel, I suggest try to plug off one of RAM and check this problem. If the issue persists, replace the RAM to the other one. Since I suspect that this problem is caused by the hardware. Please understand, to solid troubleshoot this kind of kernel crash issue, we need to debug the crashed system dump and analyze the related source code if needed. Debugging is beyond what we can do in the forum. I recommend that you can contact Microsoft Customer Service and Support (CSS) via telephone so that a dedicated Support Professional can assist with your request. Please be advised that contacting phone support will be a charged call. To obtain the phone numbers for specific technology request please take a look at the web site listed below: http://support.microsoft.com/default.aspx?scid=fh;EN-US;OfferProPhone#faq607 Microsoft Customer Service (800) 426-9400 is available Monday through Friday, from 6:30 A.M. to 5:30 P.M. pacific time. Note: Microsoft Customer Service mainly handles issues regarding replacement manuals, disks, drivers and service packs, product IDs, or lost CD-keys, product orders, policies related to copying software on additional computers, licensing, and product registration. Hope that helps Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.