Can't launch Editor or start UT Game

Imposible to launch Editor or start UT Game, always crashing.
I try all tricks, re instal / UE program - drivers graphic - D3D11 RI dll - DX drivers…etc… but nothing good.
Any idea ?

my Config : PRO PC - Bi Xeon E5 2680 - Geforce TITAN x2 - 64 Go RAM - WIN7 PRO SP1

my log after crash editor :

Unknown exception - code 00000001 (first/second chance not available)

Assertion failed: ModuleManager.IsModuleLoaded(ModuleName) [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.7\Engine\Source\Runtime\Core\Public\Modules\ModuleManager.h] [Line: 237]
Tried to get module interface for unloaded module: 'D3

KERNELBASE + 109229 bytes
UE4Editor_Core!FOutputDeviceWindowsError::Serialize() + 292 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\windows\windowsplatformoutputdevices.cpp:95]
UE4Editor_Core!FOutputDevice::Logf__VA() + 248 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\misc\outputdevice.cpp:144]
UE4Editor_Core!FDebug::AssertFailed() + 1079 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\misc\outputdevice.cpp:224]
UE4Editor_RHI!FModuleManager::GetModuleChecked() + 154 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\public\modules\modulemanager.h:237]
UE4Editor_RHI!FModuleManager::LoadModuleChecked() + 158 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\public\modules\modulemanager.h:282]
UE4Editor_RHI!PlatformCreateDynamicRHI() + 620 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\rhi\private\windows\windowsdynamicrhi.cpp:38]
UE4Editor_RHI!RHIInit() + 84 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\rhi\private\dynamicrhi.cpp:51]
UE4Editor!FEngineLoop::PreInit() + 7416 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\launchengineloop.cpp:1199]
UE4Editor!GuardedMain() + 251 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\launch.cpp:110]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]