Hi I've recently been receiving a few BSODs, usually when running chrome, but also when carrying out other tasks (backing up using windows backup, sycning music to iPod using iTunes etc.). Unfortunately usually the crash doesn't yield a minidump file (the crash is too severe?), however the crash tonight Windows 7 managed to catch a minidump file (see below). From what I've determined from searches both here and across the web, it seems that I might have a memory problem? I've run the diagnostic tests supplied by Dell in the BIOS (numerous RAM and HDD tests) which all passed fine, so too did a CHKDSK with no probelms at all. I've also run the windows memory diagnostic tool to check my RAM again, and that threw up no problems either. I've not recently installed any new hardware (it's a laptop). I'm reluctant to buy new RAM or replace the HDD until I'm certain that they've failed/failing... My specs are: Windows 7, 64 bit, 4Gb RAM, 2.4Ghz dual core processor, 256Mb dedicated graphics card. Thanks for any help you can provide! Minidump as follows: BugCheck 50, {fffffc1935000178, 0, fffff8000306442b, 7} Could not read faulting driver name Probably caused by : memory_corruption ( nt!MiDeleteAddressesInWorkingSet+27f ) Followup: MachineOwner --------- 1: kd> !analyze -v ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* PAGE_FAULT_IN_NONPAGED_AREA (50) Invalid system memory was referenced. This cannot be protected by try-except, it must be protected by a Probe. Typically the address is just plain bad or it is pointing at freed memory. Arguments: Arg1: fffffc1935000178, memory referenced. Arg2: 0000000000000000, value 0 = read operation, 1 = write operation. Arg3: fffff8000306442b, If non-zero, the instruction address which referenced the bad memory address. Arg4: 0000000000000007, (reserved) Debugging Details: ------------------ Could not read faulting driver name READ_ADDRESS: GetPointerFromAddress: unable to read from fffff800032c6100 fffffc1935000178 FAULTING_IP: nt!MiDeleteAddressesInWorkingSet+27f fffff800`0306442b 488b4128 mov rax,qword ptr [rcx+28h] MM_INTERNAL_CODE: 7 CUSTOMER_CRASH_COUNT: 1 DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT BUGCHECK_STR: 0x50 PROCESS_NAME: chrome.exe CURRENT_IRQL: 0 TRAP_FRAME: fffff88008797ea0 -- (.trap 0xfffff88008797ea0) NOTE: The trap frame does not contain all registers. Some register values may be zeroed or incorrect. rax=0000058000000000 rbx=0000000000000000 rcx=fffffc1935000150 rdx=0000000000e04009 rsi=0000000000000000 rdi=0000000000000000 rip=fffff8000306442b rsp=fffff88008798030 rbp=fffff70001088088 r8=fffffa8003fa9ec8 r9=0000000000000001 r10=0000000000000406 r11=fffff70001080000 r12=0000000000000000 r13=0000000000000000 r14=0000000000000000 r15=0000000000000000 iopl=0 nv up ei pl nz na pe nc nt!MiDeleteAddressesInWorkingSet+0x27f: fffff800`0306442b 488b4128 mov rax,qword ptr [rcx+28h] ds:0f3b:fffffc19`35000178=???????????????? Resetting default scope LAST_CONTROL_TRANSFER: from fffff8000303e347 to fffff80003093c40 STACK_TEXT: fffff880`08797d38 fffff800`0303e347 : 00000000`00000050 fffffc19`35000178 00000000`00000000 fffff880`08797ea0 : nt!KeBugCheckEx fffff880`08797d40 fffff800`03091d6e : 00000000`00000000 fffffc19`35000178 00000000`00001000 176c8867`00007867 : nt! ?? ::FNODOBFM::`string'+0x44711 fffff880`08797ea0 fffff800`0306442b : 00000003`00000000 f7f00000`176c8867 fffff700`01088080 fffff680`00007028 : nt!KiPageFault+0x16e fffff880`08798030 fffff800`03065596 : fffffa80`03fa9b30 fffffa80`00000000 fffff880`00000406 fffff800`00000000 : nt!MiDeleteAddressesInWorkingSet+0x27f fffff880`087988e0 fffff800`03369b1a : fffff8a0`053fb4c0 fffff880`08798c20 00000000`00000000 fffffa80`03c7bb60 : nt!MmCleanProcessAddressSpace+0x96 fffff880`08798930 fffff800`0334d09d : 00000000`c0000005 00000000`c0000001 00000000`7efa7000 fffffa80`03f5d480 : nt!PspExitThread+0x56a fffff880`08798a30 fffff800`030873fa : 00000000`00000100 fffffa80`03c7bc20 00000000`00000001 fffff800`0309913d : nt!PsExitSpecialApc+0x1d fffff880`08798a60 fffff800`03087740 : 00000000`00000246 fffff880`08798ae0 fffff800`0334d010 00000000`00000001 : nt!KiDeliverApc+0x2ca fffff880`08798ae0 fffff800`03092f77 : fffffa80`03c7bb60 00000000`000001b4 00000000`00000000 fffffa80`0463de60 : nt!KiInitiateUserApc+0x70 fffff880`08798c20 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceExit+0x9c STACK_COMMAND: kb FOLLOWUP_IP: nt!MiDeleteAddressesInWorkingSet+27f fffff800`0306442b 488b4128 mov rax,qword ptr [rcx+28h] SYMBOL_STACK_INDEX: 3 SYMBOL_NAME: nt!MiDeleteAddressesInWorkingSet+27f FOLLOWUP_NAME: MachineOwner MODULE_NAME: nt DEBUG_FLR_IMAGE_TIMESTAMP: 4e02aaa3 IMAGE_NAME: memory_corruption FAILURE_BUCKET_ID: X64_0x50_nt!MiDeleteAddressesInWorkingSet+27f BUCKET_ID: X64_0x50_nt!MiDeleteAddressesInWorkingSet+27f Followup: MachineOwner ---------

Hi, Please understand that 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. Unfortunately, debugging is beyond what we can do in the forum. I'd like to recommend you contact Microsoft Customer Support Service (CSS) for assistance so that this problem can be resolved efficiently. To obtain the phone numbers for specific technology request please take a look at the website below: http://support.microsoft.com/contactus Thanks for your understanding and cooperation! Regards, MiyaThis posting is provided "AS IS" with no warranties, and confers no rights. | 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.

Thanks for your reply Miya, I'm being told that my Product ID (taken from system page) has expired?! My copy of Windows Home 7 is an official box copy, and is WGA approved/activated? I've tried from both Chrome and IE. Am I doing something wrong, or is this a bug on your system?