Users are crashing on launch. D3D11 errors

Users are experiencing this crash on launch. They all appear to have identical machines for the most part. They've tried different GPU's though. See the additional info URL

[Link Removed]
[Link Removed]

MachineId:43FF9C5A497CB9F6ABCE20951817181D EpicAccountId:87a9b62ba2314de0a417b0071430888d

Access violation - code c0000005 (first/second chance not available)

""

dlumd64 d3d11 d3d11 d3d11 d3d11 d3d11 d3d11 d3d11 d3d11 d3d11 d3d11 UE4Editor_D3D11RHI!SafeTestD3D11CreateDevice() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\windows\d3d11rhi\private\windows\windowsd3d11device.cpp:157] UE4Editor_D3D11RHI!FD3D11DynamicRHIModule::FindAdapter() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\windows\d3d11rhi\private\windows\windowsd3d11device.cpp:263] UE4Editor_D3D11RHI!FD3D11DynamicRHIModule::IsSupported() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\windows\d3d11rhi\private\windows\windowsd3d11device.cpp:188] UE4Editor_RHI!PlatformCreateDynamicRHI() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\rhi\private\windows\windowsdynamicrhi.cpp:40] UE4Editor_RHI!RHIInit() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\rhi\private\dynamicrhi.cpp:49] UE4Editor!FEngineLoop::PreInit() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\launch\private\launchengineloop.cpp:1318] UE4Editor!GuardedMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\launch\private\launch.cpp:110] UE4Editor!GuardedMainWrapper() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\launch\private\windows\launchwindows.cpp:126] UE4Editor!WinMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\launch\private\windows\launchwindows.cpp:200]