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You're having a 124 bug check, go through
Stop 0x124 - what it means and what to try step by step. It may help you with your issue.
Code:
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* *
* Bugcheck Analysis *
* *
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Use !analyze -v to get detailed debugging information.
BugCheck 124, {0, fffffa800a4d68f8, 0, 0}
Probably caused by : GenuineIntel
Followup: MachineOwner
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4: kd> !analyze -v
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* *
* Bugcheck Analysis *
* *
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WHEA_UNCORRECTABLE_ERROR (124)
A fatal hardware error has occurred. Parameter 1 identifies the type of error
source that reported the error. Parameter 2 holds the address of the
WHEA_ERROR_RECORD structure that describes the error conditon.
Arguments:
Arg1: 0000000000000000, Machine Check Exception
Arg2: fffffa800a4d68f8, Address of the WHEA_ERROR_RECORD structure.
Arg3: 0000000000000000, High order 32-bits of the MCi_STATUS value.
Arg4: 0000000000000000, Low order 32-bits of the MCi_STATUS value.
Debugging Details:
------------------
BUGCHECK_STR: 0x124_GenuineIntel
CUSTOMER_CRASH_COUNT: 1
DEFAULT_BUCKET_ID: WIN7_DRIVER_FAULT
PROCESS_NAME: System
CURRENT_IRQL: 0
STACK_TEXT:
fffff880`0335b6f0 fffff800`0310eca9 : fffffa80`0a4d68d0 fffffa80`09e12b50 fffff8a0`00000005 00000000`00000000 : nt!WheapCreateLiveTriageDump+0x6c
fffff880`0335bc10 fffff800`02fef557 : fffffa80`0a4d68d0 fffff800`030692d8 fffffa80`09e12b50 00000000`00000000 : nt!WheapCreateTriageDumpFromPreviousSession+0x49
fffff880`0335bc40 fffff800`02f56935 : fffff800`030caae0 00000000`00000001 fffffa80`0a6969e0 fffffa80`09e12b50 : nt!WheapProcessWorkQueueItem+0x57
fffff880`0335bc80 fffff800`02ed5641 : fffff880`010cee00 fffff800`02f56910 fffffa80`09e12b00 00000000`0000055a : nt!WheapWorkQueueWorkerRoutine+0x25
fffff880`0335bcb0 fffff800`03162e5a : 00000000`00000000 fffffa80`09e12b50 00000000`00000080 fffffa80`09d765f0 : nt!ExpWorkerThread+0x111
fffff880`0335bd40 fffff800`02ebcd26 : fffff880`0316a180 fffffa80`09e12b50 fffff880`031750c0 00000000`00000000 : nt!PspSystemThreadStartup+0x5a
fffff880`0335bd80 00000000`00000000 : fffff880`0335c000 fffff880`03356000 fffff880`04350740 00000000`00000000 : nt!KiStartSystemThread+0x16
STACK_COMMAND: kb
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: GenuineIntel
IMAGE_NAME: GenuineIntel
DEBUG_FLR_IMAGE_TIMESTAMP: 0
FAILURE_BUCKET_ID: X64_0x124_GenuineIntel_PROCESSOR_MAE_PRV
BUCKET_ID: X64_0x124_GenuineIntel_PROCESSOR_MAE_PRV
Followup: MachineOwner
---------
4: kd> !sysinfo cpuspeed
sysinfo: could not find necessary interfaces.
sysinfo: note that mssmbios.sys must be loaded (XPSP2+).
4: kd> !errrec fffffa800a4d68f8
===============================================================================
Common Platform Error Record @ fffffa800a4d68f8
-------------------------------------------------------------------------------
Record Id : 01cdd00066c56ba3
Severity : Fatal (1)
Length : 928
Creator : Microsoft
Notify Type : Machine Check Exception
Timestamp : 12/1/2012 20:14:04 (UTC)
Flags : 0x00000002 PreviousError
===============================================================================
Section 0 : Processor Generic
-------------------------------------------------------------------------------
Descriptor @ fffffa800a4d6978
Section @ fffffa800a4d6a50
Offset : 344
Length : 192
Flags : 0x00000001 Primary
Severity : Fatal
Proc. Type : x86/x64
Instr. Set : x64
Error Type : Micro-Architectural Error
Flags : 0x00
CPU Version : 0x00000000000106a5
Processor ID : 0x0000000000000004
===============================================================================
Section 1 : x86/x64 Processor Specific
-------------------------------------------------------------------------------
Descriptor @ fffffa800a4d69c0
Section @ fffffa800a4d6b10
Offset : 536
Length : 128
Flags : 0x00000000
Severity : Fatal
Local APIC Id : 0x0000000000000004
CPU Id : a5 06 01 00 00 08 10 04 - bd e3 98 00 ff fb eb bf
00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
Proc. Info 0 @ fffffa800a4d6b10
===============================================================================
Section 2 : x86/x64 MCA
-------------------------------------------------------------------------------
Descriptor @ fffffa800a4d6a08
Section @ fffffa800a4d6b90
Offset : 664
Length : 264
Flags : 0x00000000
Severity : Fatal
Error : Internal timer (Proc 4 Bank 5)
Status : 0xbe00000000800400
Address : 0x000007feed5d8e7f
Misc. : 0x0000000000000000 Other dump file shows ntfs errors which can be caused due to antivirus program. Uninstall Avast! and use MSE during your time of troubleshooting
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Hope this helps for now