It is caused by Comodo firewall, that you have installed last month.
Code:
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************
Use !analyze -v to get detailed debugging information.
BugCheck 135, {ffffffffc0000005, fffff8800966ea20, fffff88003c46148, fffff8a0001e5770}
Unable to load image cmdguard.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for cmdguard.sys
*** ERROR: Module load completed but symbols could not be loaded for cmdguard.sys
Probably caused by : cmdguard.sys ( cmdguard+1626f )
Followup: MachineOwner
---------
0: kd> !analyze -v
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************
REGISTRY_FILTER_DRIVER_EXCEPTION (135)
This bugcheck is caused by an unhandled exception in a registry filtering driver.
This bugcheck indicates that a registry filtering driver didn't handle exception inside
its notification routine. One can identify the driver by the 3rd parameter.
Arguments:
Arg1: ffffffffc0000005, ExceptionCode
Arg2: fffff8800966ea20, Address of the context record for the exception that caused the bugcheck
Arg3: fffff88003c46148, The driver's callback routine address
Arg4: fffff8a0001e5770, Internal
Debugging Details:
------------------
CUSTOMER_CRASH_COUNT: 1
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
BUGCHECK_STR: 0x135
PROCESS_NAME: svchost.exe
CURRENT_IRQL: 0
EXCEPTION_RECORD: fffff8800966f1c8 -- (.exr 0xfffff8800966f1c8)
ExceptionAddress: fffff88003c4d26f (cmdguard+0x000000000001626f)
ExceptionCode: c0000005 (Access violation)
ExceptionFlags: 00000000
NumberParameters: 2
Parameter[0]: 0000000000000001
Parameter[1]: 0000000000000807
Attempt to write to address 0000000000000807
TRAP_FRAME: fffff8800966f270 -- (.trap 0xfffff8800966f270)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=fffff88003cbffd0 rbx=0000000000000000 rcx=fffff88003cbffd0
rdx=0000000000000000 rsi=0000000000000000 rdi=0000000000000000
rip=fffff88003c4d26f rsp=fffff8800966f400 rbp=fffffa800483e8e0
r8=fffff8a0022521b0 r9=000000000000046c r10=000000000000046c
r11=0000000000000401 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0 nv up ei pl nz na pe nc
cmdguard+0x1626f:
fffff880`03c4d26f ?? ???
Resetting default scope
LAST_CONTROL_TRANSFER: from fffff80002e4f6a4 to fffff80002adefc0
STACK_TEXT:
fffff880`0966e1f8 fffff800`02e4f6a4 : 00000000`00000135 ffffffff`c0000005 fffff880`0966ea20 fffff880`03c46148 : nt!KeBugCheckEx
fffff880`0966e200 fffff800`02e842ed : fffffa80`048828b0 fffff880`0184dea0 fffffa80`067a1030 00000000`00000000 : nt!CmpFatalFilter+0x24
fffff880`0966e240 fffff800`02b0a06c : fffff880`018309a0 00000000`00000000 00000000`00000000 fffffa80`067e7580 : nt!CmpCallCallBacks+0x556
fffff880`0966e270 fffff800`02b09aed : fffff800`02c41d5c fffff880`0966f500 00000000`00000000 fffff800`02a60000 : nt!_C_specific_handler+0x8c
fffff880`0966e2e0 fffff800`02b088c5 : fffff800`02c41d5c fffff880`0966e358 fffff880`0966f1c8 fffff800`02a60000 : nt!RtlpExecuteHandlerForException+0xd
fffff880`0966e310 fffff800`02b19851 : fffff880`0966f1c8 fffff880`0966ea20 fffff880`00000000 00000000`c0000503 : nt!RtlDispatchException+0x415
fffff880`0966e9f0 fffff800`02ade642 : fffff880`0966f1c8 00000000`000007ff fffff880`0966f270 00000000`c0000001 : nt!KiDispatchException+0x135
fffff880`0966f090 fffff800`02add1ba : 00000000`00000001 00000000`00000807 fffff8a0`ef8f4600 00000000`000007ff : nt!KiExceptionDispatch+0xc2
fffff880`0966f270 fffff880`03c4d26f : 00000000`00000001 00000000`000007ff fffffa80`0483e8e0 00000000`000007ff : nt!KiPageFault+0x23a
fffff880`0966f400 00000000`00000001 : 00000000`000007ff fffffa80`0483e8e0 00000000`000007ff 00000000`00000000 : cmdguard+0x1626f
fffff880`0966f408 00000000`000007ff : fffffa80`0483e8e0 00000000`000007ff 00000000`00000000 fffff880`03c3a867 : 0x1
fffff880`0966f410 fffffa80`0483e8e0 : 00000000`000007ff 00000000`00000000 fffff880`03c3a867 00000000`00000000 : 0x7ff
fffff880`0966f418 00000000`000007ff : 00000000`00000000 fffff880`03c3a867 00000000`00000000 fffffa80`0483e8e0 : 0xfffffa80`0483e8e0
fffff880`0966f420 00000000`00000000 : fffff880`03c3a867 00000000`00000000 fffffa80`0483e8e0 00000000`c0000001 : 0x7ff
STACK_COMMAND: kb
FOLLOWUP_IP:
cmdguard+1626f
fffff880`03c4d26f ?? ???
SYMBOL_STACK_INDEX: 9
SYMBOL_NAME: cmdguard+1626f
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: cmdguard
IMAGE_NAME: cmdguard.sys
DEBUG_FLR_IMAGE_TIMESTAMP: 509adbab
FAILURE_BUCKET_ID: X64_0x135_cmdguard+1626f
BUCKET_ID: X64_0x135_cmdguard+1626f
Followup: MachineOwner
---------
0: kd> lmvm cmdguard
start end module name
fffff880`03c37000 fffff880`03cca000 cmdguard T (no symbols)
Loaded symbol image file: cmdguard.sys
Image path: cmdguard.sys
Image name: cmdguard.sys
Timestamp: Thu Nov 08 03:37:39 2012 (509ADBAB)
CheckSum: 00094A35
ImageSize: 00093000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4
Description here: Driver Reference Table - cmdguard.sys
Uninstall Comodo Firewall. It will configure windows inbuilt firewall automatically.
Realtek NIC driver is also in problem.
Code:
fffff880`0966e1c0 fffff880`0425d9e8Unable to load image Rt64win7.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for Rt64win7.sys
*** ERROR: Module load completed but symbols could not be loaded for Rt64win7.sys
Rt64win7+0x1b9e8
Which is very old.
Code:
lmvm Rt64win7
start end module name
fffff880`04242000 fffff880`042cf000 Rt64win7 T (no symbols)
Loaded symbol image file: Rt64win7.sys
Image path: Rt64win7.sys
Image name: Rt64win7.sys
Timestamp: Tue Aug 23 19:25:41 2011 (4E53B15D)
CheckSum: 00097338
ImageSize: 0008D000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4
Update it from Realtek.
The display driver is outdated, and crashing.
Code:
lmvm atikmdag
start end module name
fffff880`0488b000 fffff880`05317000 atikmdag T (no symbols)
Loaded symbol image file: atikmdag.sys
Image path: atikmdag.sys
Image name: atikmdag.sys
Timestamp: Fri Jan 27 18:18:52 2012 (4F229D34)
CheckSum: 00A42C49
ImageSize: 00A8C000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4
Update it from AMD Graphics Drivers & Software.
AMD SATA Controller AHCI 1.2 Device Driver is also very old, and crashing.
Code:
lmvm amd_sata
start end module name
fffff880`00e1a000 fffff880`00e31000 amd_sata T (no symbols)
Loaded symbol image file: amd_sata.sys
Image path: amd_sata.sys
Image name: amd_sata.sys
Timestamp: Sat Mar 05 02:15:41 2011 (4D714F75)
CheckSum: 000202DD
ImageSize: 00017000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4
Update it from AMD Support & Drivers.
There may be some more faults. But, after performing those, let us know the situation.