Guild Wars 2

I have let go of what seems to be a Sound Bug for a little while now, happening 2-3 times on two different days recently, until today, which is the third time now this has happened another 2 times in a single day.

I am not sure if location is a thing with this Sound Bug, yet I have only experienced it while farming Skelk for anywhere between two and four hours in Pearl Islet.

What happens is after a while killing Skelks on the shorelines back and forth in Pearl Iselt, the sounds my character makes and the sounds that my weapon makes goes away, yet the music still plays… And then upon trying to Log-Out or press the Windows Key on my keyboard, my game and everything freezes up, causing me to do a force restart on my computer.

The only thing, though, I could actually do while my computer was froze up is get to the Task Manager by doing CTRL, ALT, DEL in which it told me: Guild Wars 2 – Not Responding, so I know it is something to do with Guild Wars 2 because I have never experienced this in any other game I have played for hours at a time.

My computer specs are as follows:

GPU: GeForce GTX 760
CPU: Intel® Core™ i7-4820K @ 3.70 GHz
PSU: CS750M Watt Corsair (750 being the Watts)
Memory: 24.00 GB RAM (23.93 usable)
HDD Space: 2 Terabytes
Cooling System: Closed-Loop Liquid Cooling System
Current Resolution: 1920 × 1080, 60 Hz
Graphics Driver Version: 347.88
Operating System: Microsoft Windows 8.1 Pro with Media Center
DirectX Version: DirectX 11

Sound Device Specifications:

Description: Speakers / Headphones (IDT High Definition Audio CODEC)
Default Sound Playback: True
Default Voice Playback: True
Type: WDM
Driver Name: stwrt64.sys
Driver Version: 6.10.6496.0000
Date and Size: 1/5/2014 07:42:18
Driver Provider: IDT
Min/Max Sample Rate: 321961440, 321961440
Static/Strm HW Mix Bufs: 321961440, 321961440
Static/Strm HW 3D Bufs: 321961440, 321961440
HW Memory: 10240
Voice Management: False
EAX 2.0 Listen/Src: False, False
I3DL2 Listen/Src: False, False

Performance Specifications from Task Manager:

Kernel:
Threads: 1,262
Processes: 79
Handles: 29,313

Utilization: 1%
Speed: 3.40 GHz (or lower, it changes. Max speed 3.70 GHz)
Processes: 79
Up Time: 0:00:33:32
Sockets: 1
Cores: 4
Logical Processes: 8
Virtualization: Disabled
Hyper-V Support: Yes
L1 Cache: 256 KB
L2 Cache: 1.0 MB
L3 Cache: 10.0 MB

P.S. On another note, no, my AVG Anti-Virus Software and Windows Firewall have configured permissions set so as to not alarm me that Guild Wars 2 (and other trusted programs on my list) are trying to interfere with my computer in malicious ways.

Furthermore, nothing on my computer is overclocked except my GeForce GTX 760 Graphics Card by 10% from the manufacturer, which is nothing.

I really hope this information helps with the Sound Bug I am experiencing.
Thank you for looking into this!