BSOD with Windows 8.1 Pro 64 bit

Question

I'm having a strange problem here, I had been experincing daily BSODs, so i figured perhaps my windows install got corrupted, and did a full  format/Reinstall.  I seem to still be getting BSODs however, so i dug into the dump files, and discovered, its saying Skype is responsible. I am running Skype Desktop 7.2 and I do NOT have a HP Fixed Webcam or any webcam, as i've seen as the common culprit around these fourms. 
SYSTEM_SERVICE_EXCEPTION (3b)
An exception happened while executing a system service routine.
Arguments:
Arg1: 00000000c0000005, Exception code that caused the bugcheck
Arg2: fffff802ddb6102c, Address of the instruction which caused the bugcheck
Arg3: ffffd000221a9d90, 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!KxWaitForLockOwnerShipWithIrql+14
fffff802`ddb6102c 48890a mov qword ptr [rdx],rcx
CONTEXT: ffffd000221a9d90 -- (.cxr 0xffffd000221a9d90;r)
rax=0000000000000000 rbx=0000000000000000 rcx=ffffd000221aa810
rdx=0000800000000000 rsi=ffffe001ce7ff080 rdi=ffffd000221aa810
rip=fffff802ddb6102c rsp=ffffd000221aa7c0 rbp=0000000000000001
r8=ffffd000221aa860 r9=0000000000000000 r10=fffff901400020f8
r11=fffff9014519c228 r12=0000000000000000 r13=0000000000000000
r14=0000000000010001 r15=0000000000000000
iopl=0 nv up di pl zr na po nc
cs=0010 ss=0018 ds=002b es=002b fs=0053 gs=002b efl=00010046
nt!KxWaitForLockOwnerShipWithIrql+0x14:
fffff802`ddb6102c 48890a mov qword ptr [rdx],rcx ds:002b:00008000`00000000=????????????????
Last set context:
rax=0000000000000000 rbx=0000000000000000 rcx=ffffd000221aa810
rdx=0000800000000000 rsi=ffffe001ce7ff080 rdi=ffffd000221aa810
rip=fffff802ddb6102c rsp=ffffd000221aa7c0 rbp=0000000000000001
r8=ffffd000221aa860 r9=0000000000000000 r10=fffff901400020f8
r11=fffff9014519c228 r12=0000000000000000 r13=0000000000000000
r14=0000000000010001 r15=0000000000000000
iopl=0 nv up di pl zr na po nc
cs=0010 ss=0018 ds=002b es=002b fs=0053 gs=002b efl=00010046
nt!KxWaitForLockOwnerShipWithIrql+0x14:
fffff802`ddb6102c 48890a mov qword ptr [rdx],rcx ds:002b:00008000`00000000=????????????????
Resetting default scope
DEFAULT_BUCKET_ID: WIN8_DRIVER_FAULT
BUGCHECK_STR: 0x3B
PROCESS_NAME: Skype.exe
CURRENT_IRQL: 0
ANALYSIS_VERSION: 6.3.9600.17298 (debuggers(dbg).141024-1500) x86fre
LAST_CONTROL_TRANSFER: from fffff802ddafe668 to fffff802ddb6102c
STACK_TEXT:
ffffd000`221aa7c0 fffff802`ddafe668 : ffffe001`cff817e0 fffff901`4519c005 00000000`00000001 fffff802`ddaf2e16 : nt!KxWaitForLockOwnerShipWithIrql+0x14
ffffd000`221aa7f0 fffff802`ddafd37b : 00000000`80000002 ffffe001`cff817e0 00000000`00000000 00000000`00000000 : nt!ExAcquireResourceExclusiveLite+0x218
ffffd000`221aa860 fffff960`001f71fc : ffffe001`cff817e0 00000000`00000000 00000000`00000000 00000000`7f3ad000 : nt!ExEnterCriticalRegionAndAcquireResourceExclusive+0x1b
ffffd000`221aa890 fffff960`002c8f80 : 00000000`80000002 ffffe001`cff817e0 00000000`00000000 00000000`00000000 : win32k!EngAcquireSemaphore+0x1c
ffffd000`221aa8c0 fffff960`002c8f56 : 00000000`00000000 ffffd000`221aa9e0 00000000`00000000 fffff960`001f5e5d : win32k!GreAcquireHmgrSemaphore+0x10
ffffd000`221aa900 fffff960`001ffbce : 00000000`00000000 00000000`00000000 00000000`80000012 00000000`0000177c : win32k!MLOCKFAST::MLOCKFAST+0xe
ffffd000`221aa930 fffff960`002017f9 : 00000000`000021e4 00000000`00000000 00000000`5401177c 00000000`00000000 : win32k!HmgDecProcessHandleCount+0x1e
ffffd000`221aa960 fffff960`001d5487 : fffff901`402333a0 00000000`80000012 00000000`00000001 fffff901`00000001 : win32k!GreSetDCOwnerEx+0x413
ffffd000`221aaa00 fffff960`002000c6 : 00000000`00000000 ffffd000`221aab00 00000000`5401177c 00000000`7f3ad000 : win32k!ReleaseCacheDC+0x107
ffffd000`221aaa40 fffff802`ddbe31b3 : ffffe001`ce7ff080 ffffd000`00000014 00000000`7f3af000 00000000`00000000 : win32k!NtUserCallOneParam+0xe6
ffffd000`221aaa80 00000000`77ce59ea : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceCopyEnd+0x13
00000000`03e5e218 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x77ce59ea
FOLLOWUP_IP:
win32k!EngAcquireSemaphore+1c
fffff960`001f71fc 4883c420 add rsp,20h
SYMBOL_STACK_INDEX: 3
SYMBOL_NAME: win32k!EngAcquireSemaphore+1c
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: win32k
IMAGE_NAME: win32k.sys
DEBUG_FLR_IMAGE_TIMESTAMP: 54ee5a22
IMAGE_VERSION: 6.3.9600.17694
STACK_COMMAND: .cxr 0xffffd000221a9d90 ; kb
BUCKET_ID_FUNC_OFFSET: 1c
FAILURE_BUCKET_ID: 0x3B_win32k!EngAcquireSemaphore
BUCKET_ID: 0x3B_win32k!EngAcquireSemaphore
ANALYSIS_SOURCE: KM
FAILURE_ID_HASH_STRING: km:0x3b_win32k!engacquiresemaphore
FAILURE_ID_HASH: {91ce18ba-878a-ee79-a2df-29f0d12dd984}
Followup: MachineOwner
Now I don't pretend to understand what all that means, but it says skype specifically, so its the only clue i have right now.
Thanks for any help.

Answer 1

Please,  run the DirectX diagnostics tool.
Go to Windows Start and in the Run box type dxdiag.exe and press the OK button. This will start the DirectX diagnostics program. Run this diagnostics and save the results to a file. Please, attach this file to your post.
Be aware that you will have to zip this file before attaching it here.