Unreal Editor Launcher won't launch Editor

Development Getting Started & Setup
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Hi Jimonions,

If you try opening the UE4Engine.exe file directly, will the editor launch then?

C:\Program Files\Unreal Engine\4.6\Engine\Binaries\Win64\UE4Engine.exe

Afterwards, follow the link below and post your dxdiag along with any logs files if they were generated.