Random BSOD

Hello,
I have had my pc that was custom build for about 3-4 months now. I get about 1-10 BSOD a day and i cannot figure out why. I have ran MEMtest 2 times and both times it got to 8 passes without anything wrong.
Here is one of the crash txts when my pc restarts.
Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033

Additional information about the problem:
BCCode: 1a
BCP1: 0000000000000403
BCP2: FFFFF68000044D50
BCP3: A5D000002209F025
BCP4: FFFFF8A00701DF58
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\051111-17187-01.dmp
C:\Users\hdfsi\AppData\Local\Temp\WER-49640-0.sysdata.xml

Read our privacy statement online:
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C:\Windows\system32\en-US\erofflps.txt

Mem Slots---

http://i843.photobucket.com/albums/z...4911/slot4.png
http://i843.photobucket.com/albums/z...4911/slot3.png
http://i843.photobucket.com/albums/z...4911/slot2.png
http://i843.photobucket.com/albums/z...4911/slot1.png
http://i843.photobucket.com/albums/z...hn4911/mem.png

If anyone can help it would be really nice thanks.!

Avast caused your crashes. It is known to be a huge cause of BSODs on Windows 7 Remove Avast and use MSE

Code:

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 1A, {403, fffff68000044d50, a5d000002209f025, fffff8a00701df58}

Unable to load image \SystemRoot\System32\Drivers\aswSnx.SYS, Win32 error 0n2
*** WARNING: Unable to verify timestamp for aswSnx.SYS
*** ERROR: Module load completed but symbols could not be loaded for aswSnx.SYS
Probably caused by : aswSnx.SYS ( aswSnx+2158d )

MEMORY_MANAGEMENT (1a)
    # Any other values for parameter 1 must be individually examined.
Arguments:
Arg1: 0000000000000403, The subtype of the bugcheck.
Arg2: fffff68000044d50
Arg3: a5d000002209f025
Arg4: fffff8a00701df58

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


BUGCHECK_STR:  0x1a_403

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT

PROCESS_NAME:  TeamViewer_Des

CURRENT_IRQL:  0

LAST_CONTROL_TRANSFER:  from fffff80002c31228 to fffff80002c7bf00

STACK_TEXT:  
fffff880`0b38c058 fffff800`02c31228 : 00000000`0000001a 00000000`00000403 fffff680`00044d50 a5d00000`2209f025 : nt!KeBugCheckEx
fffff880`0b38c060 fffff800`02cacb51 : 00000000`00000000 fffff680`00044ff8 fffffa80`06e08930 a7300000`9f1b4025 : nt! ?? ::FNODOBFM::`string'+0x31f72
fffff880`0b38c210 fffff800`02caf5d9 : fffff800`00000000 00000000`090e7fff fffff900`00000000 00000000`00000000 : nt!MiDeleteVirtualAddresses+0x408
fffff880`0b38c3d0 fffff800`02f91e50 : fffffa80`0581e540 0007ffff`00000000 00000000`00000000 00000000`00000000 : nt!MiRemoveMappedView+0xd9
fffff880`0b38c4f0 fffff960`0026eba8 : fffff900`00000000 fffff900`c316dcd0 00000000`00000001 00000000`00000000 : nt!MiUnmapViewOfSection+0x1b0
fffff880`0b38c5b0 fffff960`00292e51 : 00000000`00000000 fffff880`0b38c960 00000000`ffffffff fffff960`000fa786 : win32k!bSpDwmValidateSurface+0xe68
fffff880`0b38c8c0 fffff880`0182158d : 00000000`1901111a 00000000`1901111a 00000000`00cc0020 00000000`00000780 : win32k!NtGdiBitBltInternal+0x151
fffff880`0b38caa0 00000000`1901111a : 00000000`1901111a 00000000`00cc0020 00000000`00000780 00000000`00000438 : aswSnx+0x2158d
fffff880`0b38caa8 00000000`1901111a : 00000000`00cc0020 00000000`00000780 00000000`00000438 00000000`23011431 : 0x1901111a
fffff880`0b38cab0 00000000`00cc0020 : 00000000`00000780 00000000`00000438 00000000`23011431 00000000`00000000 : 0x1901111a
fffff880`0b38cab8 00000000`00000780 : 00000000`00000438 00000000`23011431 00000000`00000000 fffff800`ffffffff : 0xcc0020
fffff880`0b38cac0 00000000`00000438 : 00000000`23011431 00000000`00000000 fffff800`ffffffff fffffa80`00cc0020 : 0x780
fffff880`0b38cac8 00000000`23011431 : 00000000`00000000 fffff800`ffffffff fffffa80`00cc0020 fffff800`ffffffff : 0x438
fffff880`0b38cad0 00000000`00000000 : fffff800`ffffffff fffffa80`00cc0020 fffff800`ffffffff 00000000`00000000 : 0x23011431


STACK_COMMAND:  kb

FOLLOWUP_IP: 
aswSnx+2158d
fffff880`0182158d ??              ???

SYMBOL_STACK_INDEX:  7

SYMBOL_NAME:  aswSnx+2158d

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: aswSnx

IMAGE_NAME:  aswSnx.SYS

DEBUG_FLR_IMAGE_TIMESTAMP:  4dac7246

FAILURE_BUCKET_ID:  X64_0x1a_403_aswSnx+2158d

BUCKET_ID:  X64_0x1a_403_aswSnx+2158d

Followup: MachineOwner
---------

Code:

aswFsBlk.SYS        fffff880`08085000    fffff880`0808e000    0x00009000    0x4dac711c    18/04/2011 21:13:00                
aswMonFlt.sys        fffff880`0804b000    fffff880`08085000    0x0003a000    0x4dac7127    18/04/2011 21:13:11                
aswRdr.SYS        fffff880`02cb8000    fffff880`02cc2000    0x0000a000    0x4dac7133    18/04/2011 21:13:23                
aswSnx.SYS        fffff880`01800000    fffff880`01898000    0x00098000    0x4dac7246    18/04/2011 21:17:58                
aswSP.SYS        fffff880`06b51000    fffff880`06b9e000    0x0004d000    0x4dac7244    18/04/2011 21:17:56                
aswTdi.SYS        fffff880`013f0000    fffff880`01400000    0x00010000    0x4dac71e5    18/04/2011 21:16:21

Removing right now ill keep you updated if it happens again. Thanks!

Update the Realtek NIC driver
Realtek

Code:

Rt64win7.sys        fffff880`04056000    fffff880`04088000    0x00032000    0x49a65b0d    26/02/2009 13:04:13

just got a new one.

hdfsi said:

just got a new one.

Were you using Team Viewer when the crash occurred?
Dumps are showing no probable causes, please enable Driver Verifier, wait for the computer to crash and upload new dumps
Driver Verifier - Enable and Disable