Bsod During Boot Up 0x00000001 Apc_index_mismatch Vsserv.exe

2 days ago I uninstalled BitDefender 2015 and installed 2016. Since then I've rebooted the PC 3 times, the third boot Blue-Screened the PC before the Windows 10 logon screen.

0x00000001 APC_INDEX_MISMATCH

I debugged the MEMORY.DMP file using WinDbg.exe and it points to vsserv.exe which is BitDefenders real-time protection service.

Anyone else seen this BSOD?

Hopefully it was a one off instance. It never happened with 2015.

Heres the memory dump if its any help for the devs.

Microsoft ® Windows Debugger Version 6.2.9200.20512 X86

Copyright © Microsoft Corporation. All rights reserved.

Loading Dump File [C:\Windows\MEMORY.DMP]

Kernel Bitmap Dump File: Only kernel address space is available

Symbol search path is: SRV*C:\Windows\symbol_cache*http://msdl.microsoft.com/download/symbols

Executable search path is:

Windows 8 Kernel Version 10240 MP (8 procs) Free x64

Product: WinNt, suite: TerminalServer SingleUserTS

Built by: 10240.16545.amd64fre.th1.150930-1750

Machine Name:

Kernel base = 0xfffff803`f3c86000 PsLoadedModuleList = 0xfffff803`f3fab070

Debug session time: Mon Nov 9 17:41:36.535 2015 (UTC + 11:00)

System Uptime: 0 days 0:00:14.243

Loading Kernel Symbols

...............................................................

................................................................

..................................

Loading User Symbols

PEB is paged out (Peb.Ldr = 00007ff6`f1cc8018). Type ".hh dbgerr001" for details

*******************************************************************************

* *

* Bugcheck Analysis *

* *

*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 1, {7ffc5c1a356a, 0, ffff, ffffd0017b3c5b80}

Page 112866 not present in the dump file. Type ".hh dbgerr004" for details

Probably caused by : ntkrnlmp.exe ( nt!KiSystemServiceExit+24a )

Followup: MachineOwner

---------

4: kd> !analyze -v

*******************************************************************************

* *

* Bugcheck Analysis *

* *

*******************************************************************************

APC_INDEX_MISMATCH (1)

This is a kernel internal error. The most common reason to see this

bugcheck is when a filesystem or a driver has a mismatched number of

calls to disable and re-enable APCs. The key data item is the

Thread->CombinedApcDisable field. This consists of two separate 16-bit

fields, the SpecialApcDisable and the KernelApcDisable. A negative value

of either indicates that a driver has disabled special or normal APCs

(respectively) without re-enabling them; a positive value indicates that

a driver has enabled special or normal APCs (respectively) too many times.

Arguments:

Arg1: 00007ffc5c1a356a, Address of system call function or worker routine

Arg2: 0000000000000000, Thread->ApcStateIndex

Arg3: 000000000000ffff, (Thread->SpecialApcDisable << 16) | Thread->KernelApcDisable

Arg4: ffffd0017b3c5b80, Call type (0 - system call, 1 - worker routine)

Debugging Details:

------------------

Page 112866 not present in the dump file. Type ".hh dbgerr004" for details

FAULTING_IP:

+a10441e158

00007ffc`5c1a356a ?? ???

DEFAULT_BUCKET_ID: WIN8_DRIVER_FAULT

BUGCHECK_STR: 0x1

PROCESS_NAME: vsserv.exe

CURRENT_IRQL: 0

LAST_CONTROL_TRANSFER: from fffff803f3ddeca9 to fffff803f3dd42e0

STACK_TEXT:

ffffd001`7b3c5948 fffff803`f3ddeca9 : 00000000`00000001 00007ffc`5c1a356a 00000000`00000000 00000000`0000ffff : nt!KeBugCheckEx

ffffd001`7b3c5950 fffff803`f3ddebb5 : ffffc000`625e5680 fffff803`f40b6b2d 00000000`00000000 fffff803`f40a2448 : nt!KiBugCheckDispatch+0x69

ffffd001`7b3c5a90 00007ffc`5c1a356a : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceExit+0x24a

00000048`c25a3308 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x00007ffc`5c1a356a

STACK_COMMAND: kb

FOLLOWUP_IP:

nt!KiSystemServiceExit+24a

fffff803`f3ddebb5 4883ec50 sub rsp,50h

SYMBOL_STACK_INDEX: 2

SYMBOL_NAME: nt!KiSystemServiceExit+24a

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: nt

IMAGE_NAME: ntkrnlmp.exe

DEBUG_FLR_IMAGE_TIMESTAMP: 560ca418

BUCKET_ID_FUNC_OFFSET: 24a

FAILURE_BUCKET_ID: 0x1_SysCallNum_7_nt!KiSystemServiceExit

BUCKET_ID: 0x1_SysCallNum_7_nt!KiSystemServiceExit

Followup: MachineOwner