UE4 crashes on load

Have spent most today trying to get UE4 to run, without luck.

PC Specs -

Intel Core i7 3930K
32gb Ram
Windows 7 Pro 64Bit

I have the latest version of all drivers

Upon installing UE4 will work, but then when I try to load it up again it crashes out.

Have ran directly from the exe as well as through the UI

If I’m luck it gets to the UE Project Browser and then if I try to create a new project it crashes, if I select a previous project it will load, then instantly crash after its loaded.

Sometimes I get a crash log, sometime I dont.

Log is below:

Access violation - code c0000005 (first/second chance not available)
OVRDisplayRT64 + 22037 bytes
UE4Editor_D3D11RHI + 197650 bytes
UE4Editor_D3D11RHI + 369256 bytes
UE4Editor_RHI + 203388 bytes
UE4Editor_SlateRHIRenderer + 257896 bytes
UE4Editor_SlateCore + 750052 bytes
UE4Editor_Slate + 923185 bytes
UE4Editor_Slate + 956397 bytes
UE4Editor_Slate + 823815 bytes
UE4Editor_Slate + 756020 bytes
UE4Editor_Core + 2505804 bytes
UE4Editor_Core + 2450091 bytes
UE4Editor_Core + 2510873 bytes
UE4Editor_Core + 2438466 bytes
user32 + 105425 bytes
user32 + 104666 bytes
UE4Editor_Core + 3157718 bytes
UE4Editor!FEngineLoop::Tick() + 3106 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\launchengineloop.cpp:2111]
UE4Editor!GuardedMain() + 479 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\launch.cpp:133]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\windows\launchwindows.cpp:125]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\windows\launchwindows.cpp:201]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

Hey Tartanpimpernel,

Sorry for the delay on responding to this post, the holidays really slowed us down.

First, can you pass along your full crash log and dmp file? This thread shows where to find them, and they’ll help us diagnose the problem.

Which builds have you tried? The partial crash log you gave me indicates you were using 4.5, but I wanted to be sure.


have in the last few days got UE working on my main computer, from a process of elimination the issue seems to have been a conflict with Kaspersky AV and/or Input Director.

uninstalling both ( uninstalling only one made no difference ) and re-installing them after UE seems to have things working properly.


Glad to hear it. Let me know if you have any more issues with the engine.