Bsod Irql_gt_zero_at_system_service

Hello all.

I purchased BitDefender Antivirus Plus 2013 in May for one year. All was fine until last night where I've got two BSODs related to BitDefender's Firewall module. I've asked BSOD help here:

http://www.sevenforums.com/bsod-help-suppo...rvice-0x4a.html

According to the second post, the analysis is as followed:

fffff880`09aff978  fffff880`00dd6a9aUnable to load image bdfwfpf.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for bdfwfpf.sys
*** ERROR: Module load completed but symbols could not be loaded for bdfwfpf.sys
bdfwfpf+0xca9a

bdfwfpf.sys is at fault.

How can you guys fix this?

Thanks in advance.

Full analysis:

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*                        Bugcheck Analysis                                    *
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Use !analyze -v to get detailed debugging information.

BugCheck 4A, {775e138a, 2, 0, fffff88009affca0}

Probably caused by : ntkrnlmp.exe ( nt!KiSystemServiceExit+245 )

Followup: MachineOwner
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7: kd> !analyze -v
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*                        Bugcheck Analysis                                    *
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IRQL_GT_ZERO_AT_SYSTEM_SERVICE (4a)
Returning to usermode from a system call at an IRQL > PASSIVE_LEVEL.
Arguments:
Arg1: 00000000775e138a, Address of system function (system call routine)
Arg2: 0000000000000002, Current IRQL
Arg3: 0000000000000000, 0
Arg4: fffff88009affca0, 0

Debugging Details:
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PROCESS_NAME:  vsserv.exe

BUGCHECK_STR:  RAISED_IRQL_FAULT

FAULTING_IP: 
+0
00000000`775e138a c3              ret

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT

CURRENT_IRQL:  2

LAST_CONTROL_TRANSFER:  from fffff80002e931a9 to fffff80002e93c00

STACK_TEXT:  
fffff880`09affa68 fffff800`02e931a9 : 00000000`0000004a 00000000`775e138a 00000000`00000002 00000000`00000000 : nt!KeBugCheckEx
fffff880`09affa70 fffff800`02e930e0 : 00000000`00000844 fffff880`09affca0 00000000`00000000 fffff800`0317ef33 : nt!KiBugCheckDispatch+0x69
fffff880`09affbb0 00000000`775e138a : 000007fe`fd756cf6 00000000`00000000 00000000`1f0183c8 00000000`2a574950 : nt!KiSystemServiceExit+0x245
00000000`1fd3fcc8 000007fe`fd756cf6 : 00000000`00000000 00000000`1f0183c8 00000000`2a574950 000007fe`fd7310dc : 0x775e138a
00000000`1fd3fcd0 00000000`00000000 : 00000000`1f0183c8 00000000`2a574950 000007fe`fd7310dc 00000000`1bfef0a0 : 0x000007fe`fd756cf6


STACK_COMMAND:  kb

FOLLOWUP_IP: 
nt!KiSystemServiceExit+245
fffff800`02e930e0 4883ec50        sub     rsp,50h

SYMBOL_STACK_INDEX:  2

SYMBOL_NAME:  nt!KiSystemServiceExit+245

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: nt

IMAGE_NAME:  ntkrnlmp.exe

DEBUG_FLR_IMAGE_TIMESTAMP:  5147d9c6

FAILURE_BUCKET_ID:  X64_RAISED_IRQL_FAULT_vsserv.exe_nt!KiSystemServiceExit+245

BUCKET_ID:  X64_RAISED_IRQL_FAULT_vsserv.exe_nt!KiSystemServiceExit+245

Followup: MachineOwner
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