Hi Guys, I got a machine here which keeps BSODing, can you one you tell me whats causing it, I'm guessing its a driver issue as its a fresh install apparently. Here's the link to the skydrive: http://cid-96d0c6d141dde9ae.office.live.com/browse.aspx/.Public Also can you tell me in laymans terms how to do this as I've installed windbg.exe and I cannot make head nor tale of what its telling me. Cheers Daz

Analyzed dump file: 032311-21140-01.dmp ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* PFN_LIST_CORRUPT (4e) Typically caused by drivers passing bad memory descriptor lists (ie: calling MmUnlockPages twice with the same list, etc). If a kernel debugger is available get the stack trace. Arguments: Arg1: 00000099, A PTE or PFN is corrupt Arg2: 0001537f, page frame number Arg3: 00000002, current page state Arg4: 0001537c, 0 Debugging Details: ------------------ BUGCHECK_STR: 0x4E_99 CUSTOMER_CRASH_COUNT: 1 DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT PROCESS_NAME: WinSAT.exe CURRENT_IRQL: 2 TRAP_FRAME: 961d3b7c -- (.trap 0xffffffff961d3b7c) ErrCode = 00000000 eax=05ac4000 ebx=00384000 ecx=00001000 edx=fffff000 esi=05ab0000 edi=05ac4000 eip=82a08038 esp=961d3bf0 ebp=961d3bf8 iopl=0 nv up ei ng nz na pe cy cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000 efl=00010287 nt!ProbeForWrite+0x39: 82a08038 8a06 mov al,byte ptr [esi] ds:0023:05ab0000=?? Resetting default scope LAST_CONTROL_TRANSFER: from 828ee500 to 828dd4d4 STACK_TEXT: 961d3bf8 82304b64 05740000 00384000 00000004 nt!ProbeForWrite+0x39 961d3c34 8230c902 ff862b08 2d5ddb5a 03200003 dxg!bDdSecureSystemMemorySurface+0x54 961d3d14 8284175a 03200003 00000000 021cebe0 dxg!DxDdCreateSurfaceObject+0xb4 961d3d14 77976344 03200003 00000000 021cebe0 nt!KiFastCallEntry+0x12a WARNING: Frame IP not in any known module. Following frames may be wrong. 021ceb6c 00000000 00000000 00000000 00000000 0x77976344 STACK_COMMAND: .trap 0xffffffff961d3b7c ; kb FOLLOWUP_IP: dxg!bDdSecureSystemMemorySurface+54 82304b64 c745fcfeffffff mov dword ptr [ebp-4],0FFFFFFFEh SYMBOL_STACK_INDEX: 1 SYMBOL_NAME: dxg!bDdSecureSystemMemorySurface+54 FOLLOWUP_NAME: MachineOwner MODULE_NAME: dxg IMAGE_NAME: dxg.sys DEBUG_FLR_IMAGE_TIMESTAMP: 4a5bc264 FAILURE_BUCKET_ID: 0x4E_99_dxg!bDdSecureSystemMemorySurface+54 BUCKET_ID: 0x4E_99_dxg!bDdSecureSystemMemorySurface+54 Followup: MachineOwner --------- 0: kd> lmvm dxg start end module name 82300000 82317000 dxg (pdb symbols) downstreamstore\dxg.pdb\E7B76BE2CD8C4DCC8394AF037BFBDED51\dxg.pdb Loaded symbol image file: dxg.sys Mapped memory image file: DownstreamStore\dxg.sys\4A5BC26417000\dxg.sys Image path: \SystemRoot\System32\drivers\dxg.sys Image name: dxg.sys Timestamp: Tue Jul 14 01:25:24 2009 (4A5BC264) CheckSum: 000182EF ImageSize: 00017000 File version: 6.1.7600.16385 Product version: 6.1.7600.16385 File flags: 0 (Mask 3F) File OS: 40004 NT Win32 File type: 3.7 Driver File date: 00000000.00000000 Translations: 0409.04b0 CompanyName: Microsoft Corporation ProductName: Microsoft® Windows® Operating System InternalName: dxg.sys OriginalFilename: dxg.sys ProductVersion: 6.1.7600.16385 FileVersion: 6.1.7600.16385 (win7_rtm.090713-1255) FileDescription: DirectX Graphics Driver LegalCopyright: © Microsoft Corporation. All rights reserved. ||||||||||||||||||||||||||||||||||||||||||||||| As I see, you have got multiple dump files. For this dump files the cause was DirectX Graphics Driver. Please update all possible drivers and install the latest updates of your Windows. To check that you don't have RAM problems, use memtest86+. If it detects a faulty RAM then replace it. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 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