UPDATE: When I installed Win7 RC Nvidia didn't have Win7 drivers for my chipset, LAN, Audio etc. But now they do and after I installed the new LAN/Network Adaptor drivers my Blue Screens have gone away for now. I am going to consider this problem fixed. I hope this helps someone. I've been getting 2 BSOD a day so I ran a debugger on my "Memory.dmp" file. It looks like it has something to do with the TCPIP.SYS file but I don't know what to try to fix the problem. But this TCPIP.SYS error brings up another problem that I have had. When Win7 boots up I can not use my internet and if I look at my Network conections I have two. The first being my "Home Network" and the second being "Unkown Network". Normaly I have to dissable the Unknown Network and then have Win7 look for a fix to the Network problem. And sometime my network adaptor is dissabled too. Anyways thanks for any help, duff916 ____MY DEBUGGER INFO____ Loading User Symbols Loading unloaded module list .......... ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* Use !analyze -v to get detailed debugging information. BugCheck 7E, {ffffffffc0000005, fffff8800166edeb, fffff880031cb768, fffff880031cafc0} Probably caused by : tcpip.sys ( tcpip!RemoveEndpointFromAssignment+2b ) Followup: MachineOwner --------- 2: kd> !analyze -v ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* SYSTEM_THREAD_EXCEPTION_NOT_HANDLED (7e) This is a very common bugcheck. Usually the exception address pinpoints the driver/function that caused the problem. Always note this address as well as the link date of the driver/image that contains this address. Arguments: Arg1: ffffffffc0000005, The exception code that was not handled Arg2: fffff8800166edeb, The address that the exception occurred at Arg3: fffff880031cb768, Exception Record Address Arg4: fffff880031cafc0, Context Record Address Debugging Details: ------------------ EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s. FAULTING_IP: tcpip!RemoveEndpointFromAssignment+2b fffff880`0166edeb 48833800 cmp qword ptr [rax],0 EXCEPTION_RECORD: fffff880031cb768 -- (.exr 0xfffff880031cb768) ExceptionAddress: fffff8800166edeb (tcpip!RemoveEndpointFromAssignment+0x000000000000002b) ExceptionCode: c0000005 (Access violation) ExceptionFlags: 00000000 NumberParameters: 2 Parameter[0]: 0000000000000000 Parameter[1]: ffffffffffffffff Attempt to read from address ffffffffffffffff CONTEXT: fffff880031cafc0 -- (.cxr 0xfffff880031cafc0) rax=102a100119400700 rbx=fffffa80047b04c0 rcx=fffffa80048de180 rdx=fffffa80045e3d60 rsi=fffffa8003956000 rdi=fffffa8004456a50 rip=fffff8800166edeb rsp=fffff880031cb9a8 rbp=0000000000000000 r8=fffff880031cb9d0 r9=0000000000000000 r10=fffff80002c1b000 r11=0000000000000000 r12=000000000000e44c r13=000000000000af00 r14=fffffa80045e3d60 r15=000000000000e44c iopl=0 nv up ei pl nz na po cy cs=0010 ss=0000 ds=002b es=002b fs=0053 gs=002b efl=00010207 tcpip!RemoveEndpointFromAssignment+0x2b: fffff880`0166edeb 48833800 cmp qword ptr [rax],0 ds:002b:102a1001`19400700=???????????????? Resetting default scope DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT PROCESS_NAME: System CURRENT_IRQL: 2 ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s. EXCEPTION_PARAMETER1: 0000000000000000 EXCEPTION_PARAMETER2: ffffffffffffffff READ_ADDRESS: ffffffffffffffff FOLLOWUP_IP: tcpip!RemoveEndpointFromAssignment+2b fffff880`0166edeb 48833800 cmp qword ptr [rax],0 BUGCHECK_STR: 0x7E LAST_CONTROL_TRANSFER: from fffff8800166ecf2 to fffff8800166edeb STACK_TEXT: fffff880`031cb9a8 fffff880`0166ecf2 : 00000000`0000af00 00000000`0000004c fffffa80`03956000 fffff800`02c991d3 : tcpip!RemoveEndpointFromAssignment+0x2b fffff880`031cb9b0 fffff880`0166a1dd : 00000000`00000000 80000004`00000000 00000000`00000000 fffff880`03e3806f : tcpip!InetReleasePort+0x82 fffff880`031cba20 fffff880`01632a58 : 00000000`00000000 00000000`00000000 00000000`0000afd1 00000000`0000afd4 : tcpip!TcpCleanupEndpointWorkQueueRoutine+0x5d fffff880`031cbaa0 fffff880`0166c0ea : fffff880`031cbba0 fffff880`031cbad8 fffffa80`045e3cf0 fffffa80`04634130 : tcpip!TcpDereferenceEndpoint+0x18 fffff880`031cbad0 fffff880`0166c119 : 00000000`0000afd2 fffffa80`04634010 00000000`00000000 00000000`0000afd1 : tcpip!TcpCloseEndpoint+0x14a fffff880`031cbb40 fffff880`03e31eae : 00000000`0000afd4 fffffa80`04634130 00000000`58646641 fffffa80`000006b1 : tcpip!TcpTlEndpointCloseEndpoint+0x9 fffff880`031cbb70 fffff880`03e3bee1 : fffffa80`04634130 fffff880`03e36bf0 fffff880`03e25c90 fffff880`03e3bec0 : afd! ?? ::NNGAKEGL::`string'+0x154a fffff880`031cbc20 fffff880`03e020e7 : fffffa80`04634130 fffffa80`04634130 fffff880`03e36bf0 fffff880`03e25c90 : afd!AfdFreeEndpointTditl+0x21 fffff880`031cbc50 fffff800`02f6dee3 : fffff800`02f6dec0 fffffa80`04c9e670 fffff800`02e2c638 fffffa80`039fc680 : afd!AfdDoWork+0x67 fffff880`031cbc80 fffff800`02c9f744 : fffff800`02e2c600 fffffa80`05048601 fffffa80`039fc600 fffff800`02e2c638 : nt!IopProcessWorkItem+0x23 fffff880`031cbcb0 fffff800`02f1fe66 : 00006446`00006445 00000000`00000001 fffffa80`039fc680 00006452`00006451 : nt!ExpWorkerThread+0x11a fffff880`031cbd40 fffff800`02c4ca86 : fffff880`02f63180 fffffa80`039fc680 fffff880`02f6dfc0 00006437`00006436 : nt!PspSystemThreadStartup+0x5a fffff880`031cbd80 00000000`00000000 : fffff880`031cc000 fffff880`031c6000 fffff880`031cb6b0 00000000`00000000 : nt!KxStartSystemThread+0x16 SYMBOL_STACK_INDEX: 0 SYMBOL_NAME: tcpip!RemoveEndpointFromAssignment+2b FOLLOWUP_NAME: MachineOwner MODULE_NAME: tcpip IMAGE_NAME: tcpip.sys DEBUG_FLR_IMAGE_TIMESTAMP: 49ee8ebc STACK_COMMAND: .cxr 0xfffff880031cafc0 ; kb FAILURE_BUCKET_ID: X64_0x7E_tcpip!RemoveEndpointFromAssignment+2b BUCKET_ID: X64_0x7E_tcpip!RemoveEndpointFromAssignment+2b Followup: MachineOwner ---------