Encountering random client crashing/disconnects still

My old thread was put into resolved but it clearly wasn't with no replies and my friend can no longer use a system restore to fix the problem.

copy and pasted from the old thread;

Random Disconnect/Client Crash issues
a friend of mine has been struggling recently and he's been encountering a problem. Relayed from his own words;

Hey guys. I'm not really sure where else to go to for help. I've been looking around trying to find a solution, but I can't find one.
Whenever I open the launcher and click on "play", this application error pops up: https://i.gyazo.com/b2a4fc36248c1655...5c3fcf4ec1.png
Does anyone know how to fix it?

These are his system specifications;

-=-=-=-=-=-=- System Information -=-=-=-=-=-=-

SYSTEM_OS Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_ldr.160408-2045)
SYSTEM_CPU Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz (8 CPUs), ~3.4GHz
SYSTEM_CORE_NUM SYSTEM_CORE_LOGIC 8 SYSTEM_CORE_PHYSICS 4
SYSTEM_BIOS BIOS Date: 07/17/12 17:51:21 Ver: 14.03
SYSTEM_LANGUAGE English (Regional Setting: English)
SYSTEM_MEMORY 16334.512MB
SYSTEM_VIRTUAL_MEMORY 2047.875MB
SYSTEM_PAGE_FILE 32667.207MB
SYSTEM_STORAGE C:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 931.413GB SYSTEM_FREEDISC_SPACE 501.930GB
SYSTEM_DIRECTX_VERSION DirectX 11
SYSTEM_GRAPHICS NVIDIA GeForce GTX 550 Ti
SYSTEM_GRAPHICS_DEVICE \\.\DISPLAY1
SYSTEM_GRAPHICS_CHIP GeForce GTX 550 Ti
SYSTEM_GRAPHICS_MAKER NVIDIA
SYSTEM_GRAPHICS_VRAM 977.188 MB
SYSTEM_GRAPHICS_SHARED_VRAM 3071.887 MB
SYSTEM_GRAPHICS_DAC Integrated RAMDAC
SYSTEM_GRAPHICS_DISPLAY_MODE 1920 x 1080 (32 bit) (60Hz)
SYSTEM_GRAPHICS_DRIVER nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
SYSTEM_GRAPHICS_DRIVER_VERSION 9.18.0013.3523
SYSTEM_GRAPHICS_DRIVER_DATE 3/20/2014 11:02:50 PM
SYSTEM_GRAPHICS_DRIVER_LANGUAGE English
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER 3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE SYSTEM_SUPPORT
SYSTEM_SOUND Headphones (High Definition Audio Device)
SYSTEM_SOUND_DEVICE_ID {6804C23D-B023-42A0-8240-2471FEC96E24}
SYSTEM_SOUND_DEVICE_NAME HdAudio.sys
SYSTEM_SOUND_DRIVER_VERSION 6.01.7601.17514
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 11/20/2010 8:23:47 PM
SYSTEM_SOUND Digital Audio (S/PDIF) (High Definition Audio Device)
SYSTEM_SOUND_DEVICE_ID {759CEE13-5D76-4E0C-AF9B-220E404EB290}
SYSTEM_SOUND_DEVICE_NAME HdAudio.sys
SYSTEM_SOUND_DRIVER_VERSION 6.01.7601.17514
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 11/20/2010 8:23:47 PM
SYSTEM_SOUND Digital Audio (S/PDIF) (High Definition Audio Device)
SYSTEM_SOUND_DEVICE_ID {769B5F78-AF6D-49CE-99CC-D1389513B757}
SYSTEM_SOUND_DEVICE_NAME HdAudio.sys
SYSTEM_SOUND_DRIVER_VERSION 6.01.7601.17514
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 11/20/2010 8:23:47 PM
SYSTEM_INPUT {6F1D2B60-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Mouse
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 3 SYSTEM_GAMEPAD_BUTTON 5 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {6F1D2B61-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Keyboard
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 128 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {D0797140-2FD8-11E6-8001444553540000}
SYSTEM_INPUT_NAME Razer Naga Epic Chroma
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 573 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {D079BF60-2FD8-11E6-8002444553540000}
SYSTEM_INPUT_NAME Razer Naga Epic Chroma
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 3 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {D079E670-2FD8-11E6-8003444553540000}
SYSTEM_INPUT_NAME Razer Naga Epic Chroma
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 1 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {D079E670-2FD8-11E6-8004444553540000}
SYSTEM_INPUT_NAME Razer Naga Epic Chroma
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 1 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {CCDE58E0-3238-11E6-8001444553540000}
SYSTEM_INPUT_NAME Razer DeathStalker
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 573 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {D0A2DAF0-3238-11E6-8002444553540000}
SYSTEM_INPUT_NAME Razer DeathStalker
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 3 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {D53F4670-3238-11E6-8003444553540000}
SYSTEM_INPUT_NAME Razer DeathStalker
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 1 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {D83D6B40-3238-11E6-8004444553540000}
SYSTEM_INPUT_NAME Razer DeathStalker
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 1 SYSTEM_GAMEPAD_FOV 0

He has informed me that he has tried multiple system restores and it temporarily fixes the issue but only leads to the same problem eventually.

If anyone can please help my friend, much would be appreciated.