BSOD crashing windows 7 64 bit

I am terrible with dump files, but I will give you the advice to fill out your system specs. You can find it under User CP, and it will help us all in the future avoid asking you about your specifications :)

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* *
* Bugcheck Analysis *
* *
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SYSTEM_SERVICE_EXCEPTION (3b)
An exception happened while executing a system service routine.
Arguments:
Arg1: 00000000c0000005, Exception code that caused the bugcheck
Arg2: fffff8800413a986, Address of the instruction which caused the bugcheck
Arg3: fffff8800a243d10, Address of the context record for the exception that caused the bugcheck
Arg4: 0000000000000000, zero.

Debugging Details:
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EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s.

FAULTING_IP:
dxgmms1!VidMmDestroyAllocation+46
fffff880`0413a986 49894108 mov qword ptr [r9+8],rax

CONTEXT: fffff8800a243d10 -- (.cxr 0xfffff8800a243d10)
rax=fffff8a002dc7160 rbx=fffff8a002dc7160 rcx=fffffa80058a8000
rdx=fffff8a007326730 rsi=fffff8a007326730 rdi=fefff8a002dc7160
rip=fffff8800413a986 rsp=fffff8800a2446e0 rbp=fffffa80058a8000
r8=fffff8a008a7f770 r9=fefff8a002dc7160 r10=0000000000000000
r11=fffff880019c1120 r12=fffff8a002f498a0 r13=fffff8a008a7c900
r14=0000000000000001 r15=0000000000000000
iopl=0 nv up ei pl nz na pe nc
cs=0010 ss=0018 ds=002b es=002b fs=0053 gs=002b efl=00010202
dxgmms1!VidMmDestroyAllocation+0x46:
fffff880`0413a986 49894108 mov qword ptr [r9+8],rax ds:002b:fefff8a0`02dc7168=????????????????
Resetting default scope

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT

BUGCHECK_STR: 0x3B

PROCESS_NAME: iw4mp.exe

CURRENT_IRQL: 0

LAST_CONTROL_TRANSFER: from 0000000000000000 to fffff8800413a986

STACK_TEXT:
fffff880`0a2446e0 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : dxgmms1!VidMmDestroyAllocation+0x46


FOLLOWUP_IP:
dxgmms1!VidMmDestroyAllocation+46
fffff880`0413a986 49894108 mov qword ptr [r9+8],rax

SYMBOL_STACK_INDEX: 0

SYMBOL_NAME: dxgmms1!VidMmDestroyAllocation+46

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: dxgmms1

IMAGE_NAME: dxgmms1.sys

DEBUG_FLR_IMAGE_TIMESTAMP: 4a5bc578

STACK_COMMAND: .cxr 0xfffff8800a243d10 ; kb

FAILURE_BUCKET_ID: X64_0x3B_dxgmms1!VidMmDestroyAllocation+46

BUCKET_ID: X64_0x3B_dxgmms1!VidMmDestroyAllocation+46

Followup: MachineOwner
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I found this in the CoD4Boards forums have a go and see if it fixes it: iw4sp.exe or iw4mp.exe Errors (Modern Warfare 2) - Call of Duty: Modern Warfare and Black Ops Forums

*******************************************************************************
* *
* Bugcheck Analysis *
* *
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SYSTEM_SERVICE_EXCEPTION (3b)
An exception happened while executing a system service routine.
Arguments:
Arg1: 00000000c0000005, Exception code that caused the bugcheck
Arg2: fffff8000316fd6c, Address of the instruction which caused the bugcheck
Arg3: fffff88002ebd130, Address of the context record for the exception that caused the bugcheck
Arg4: 0000000000000000, zero.

Debugging Details:
------------------


EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s.

FAULTING_IP:
nt!ObReferenceObjectByHandleWithTag+10c
fffff800`0316fd6c 0fb64518 movzx eax,byte ptr [rbp+18h]

CONTEXT: fffff88002ebd130 -- (.cxr 0xfffff88002ebd130)
rax=fefffa8003bc5c51 rbx=fffff8a00d49f200 rcx=fefffa8003bc5c50
rdx=0000000000000002 rsi=fffff8a0018c0690 rdi=fffffa8003df9a90
rip=fffff8000316fd6c rsp=fffff88002ebdb00 rbp=fefffa8003bc5c50
r8=fffff8a00d49e000 r9=0000000000000008 r10=fffff8000319a058
r11=000000000031dd58 r12=0000000000000000 r13=0000000000000480
r14=0000000000000001 r15=fffffa80042276d0
iopl=0 nv up ei ng nz na po nc
cs=0010 ss=0018 ds=002b es=002b fs=0053 gs=002b efl=00010286
nt!ObReferenceObjectByHandleWithTag+0x10c:
fffff800`0316fd6c 0fb64518 movzx eax,byte ptr [rbp+18h] ss:0018:fefffa80`03bc5c68=??
Resetting default scope

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT

BUGCHECK_STR: 0x3B

PROCESS_NAME: audiodg.exe

CURRENT_IRQL: 0

LAST_CONTROL_TRANSFER: from fffff8000319a097 to fffff8000316fd6c

STACK_TEXT:
fffff880`02ebdb00 fffff800`0319a097 : 00000000`00000000 ffffffff`00000002 fffffa80`039fd570 00000000`00000001 : nt!ObReferenceObjectByHandleWithTag+0x10c
fffff880`02ebdbd0 fffff800`02e7a993 : fffffa80`03df9a90 00000000`00000000 00000000`00000000 fffffa80`06119500 : nt!NtClearEvent+0x3f
fffff880`02ebdc20 00000000`7760013a : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceCopyEnd+0x13
00000000`02c3fc18 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x7760013a


FOLLOWUP_IP:
nt!ObReferenceObjectByHandleWithTag+10c
fffff800`0316fd6c 0fb64518 movzx eax,byte ptr [rbp+18h]

SYMBOL_STACK_INDEX: 0

SYMBOL_NAME: nt!ObReferenceObjectByHandleWithTag+10c

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: nt

IMAGE_NAME: ntkrnlmp.exe

DEBUG_FLR_IMAGE_TIMESTAMP: 4c1c44a9

STACK_COMMAND: .cxr 0xfffff88002ebd130 ; kb

FAILURE_BUCKET_ID: X64_0x3B_nt!ObReferenceObjectByHandleWithTag+10c

BUCKET_ID: X64_0x3B_nt!ObReferenceObjectByHandleWithTag+10c

Followup: MachineOwner
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Try this should work: Fix: Audiodg.exe High CPU Usage

Try those things and get back to me so see how things went.