Error when starting UE 4.11.2

Error message says :
Launch failed
Error code: LS-0013
I already have verified the installation and uninstalled and reinstalled.
What’s the problem?
Thank you.

Privilegies issue with the win7 accounts and the launcher.
Same problem here.
Dont start from the Launcher:
C:\Program Files\Epic Games\Launcher\Portal\Binaries\Win64\EpicGamesLauncher.exe

…but start right from editor:
C:\Program Files\Epic Games\4.10\Engine\Binaries\Win64\UE4Editor.exe

Start the editor and select the project itself.

@Blackhole Bilbao: Thanks for sharing this solution. @jobim: Try this solution and respond to this post if it does not resolve the issue.