Random BSOD occurring almost daily, error 0x0000003b

Hello Mayega,

From the one dump in the zip you attached it shows that Avast! antivirus is causing the BSOD for you.

Code:

Microsoft (R) Windows Debugger Version 6.2.9200.20512 X86
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\Users\Usra\Downloads\SF_02-04-2014\SF_02-04-2014\040214-28438-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*C:\SymCache*http://msdl.microsoft.com/download/symbols
Executable search path is: 
Windows 7 Kernel Version 7601 (Service Pack 1) MP (4 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS Personal
Built by: 7601.18247.amd64fre.win7sp1_gdr.130828-1532
Machine Name:
Kernel base = 0xfffff800`0301e000 PsLoadedModuleList = 0xfffff800`032616d0
Debug session time: Wed Apr  2 16:37:05.332 2014 (UTC + 6:00)
System Uptime: 1 days 0:10:07.800
Loading Kernel Symbols
...............................................................
................................................................
..........................................
Loading User Symbols
Loading unloaded module list
..................................................
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 3B, {c0000005, fffff8000333041f, fffff8800ad95af0, 0}

*** 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+1ea42 )

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

0: kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

SYSTEM_SERVICE_EXCEPTION (3b)
An exception happened while executing a system service routine.
Arguments:
Arg1: 00000000c0000005, Exception code that caused the bugcheck
Arg2: fffff8000333041f, Address of the instruction which caused the bugcheck
Arg3: fffff8800ad95af0, 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!RtlCompareUnicodeString+b
fffff800`0333041f 0fb711          movzx   edx,word ptr [rcx]

CONTEXT:  fffff8800ad95af0 -- (.cxr 0xfffff8800ad95af0)
rax=fffff88003b3a2c0 rbx=0000000000b6e4c0 rcx=0000000000ec0000
rdx=fffff88003b3a2c0 rsi=0000000000000000 rdi=0000000000000001
rip=fffff8000333041f rsp=fffff8800ad964d0 rbp=0000000000000340
 r8=0000000000000001  r9=0000000000000006 r10=0000000000000008
r11=fffff8800ad964f0 r12=fffffa80041a7a00 r13=0000000082ac0004
r14=000000000000008c r15=fffffa8004af68c0
iopl=0         nv up ei ng nz na pe nc
cs=0010  ss=0018  ds=002b  es=002b  fs=0053  gs=002b             efl=00010282
nt!RtlCompareUnicodeString+0xb:
fffff800`0333041f 0fb711          movzx   edx,word ptr [rcx] ds:002b:00000000`00ec0000=????
Resetting default scope

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT

BUGCHECK_STR:  0x3B

PROCESS_NAME:  ccSvcHst.exe

CURRENT_IRQL:  0

LAST_CONTROL_TRANSFER:  from fffff88003ad6a42 to fffff8000333041f

STACK_TEXT:  
fffff880`0ad964d0 fffff880`03ad6a42 : 00000000`00b6e4c0 00000000`00000000 00000000`00000001 fffffa80`041a7a00 : nt!RtlCompareUnicodeString+0xb
fffff880`0ad96510 00000000`00b6e4c0 : 00000000`00000000 00000000`00000001 fffffa80`041a7a00 00000000`00000000 : aswSnx+0x1ea42
fffff880`0ad96518 00000000`00000000 : 00000000`00000001 fffffa80`041a7a00 00000000`00000000 fffff8a0`00000004 : 0xb6e4c0


FOLLOWUP_IP: 
aswSnx+1ea42
fffff880`03ad6a42 ??              ???

SYMBOL_STACK_INDEX:  1

SYMBOL_NAME:  aswSnx+1ea42

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: aswSnx

IMAGE_NAME:  aswSnx.SYS

DEBUG_FLR_IMAGE_TIMESTAMP:  4ed3cabd

STACK_COMMAND:  .cxr 0xfffff8800ad95af0 ; kb

FAILURE_BUCKET_ID:  X64_0x3B_aswSnx+1ea42

BUCKET_ID:  X64_0x3B_aswSnx+1ea42

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

Name Information Source ++ aswSnx.SYS ++ avast! Virtualization Driver ++ http://support.avast.com/

Please remove it for testing purpose. Use Microsoft Security Essentials.

Recommended from a strict BSOD perspective, compatibility & stability compared to other security software:

Microsoft Security Essentials - Free Antivirus for Windows

Malwarebytes - Free

Good and Free system security combination.

Reduce items at start-up: Startup Programs - Change

Perform a clean boot: Troubleshoot Application Conflicts by Performing a Clean Startup

Run a System file check (SFC): SFC /SCANNOW Command - System File Checker

Run Disk Check on your Hard Drive(s): Disk Check

Scan with Kaspersky TDSSKiller:Anti-rootkit utility TDSSKiller

ESET online scanner: Free Online Virus Scanner | ESET

Keep us posted.