

# The necessary prerequisites have failed to install. To resolve this issue, please run Windows Update.

UE4 includes Microsoft's standalone installer which attempts to install these, but this can fail if your Windows Update is disabled or if your version of Windows is not updated to the latest patch. For UE 4.10 and above, Visual Studio 2015 redistributable components are required for the editor to run.If the Epic Games Launcher fails to install the Unreal Engine 4 and it provides the following error messages, please see the potential resolutions: # The necessary prerequisites have failed to install. This page is a work-in-progress and will be added to over time. If none of the below information is able to help you, then please submit your issue to the UE4 Answerhub under the 'Installation & Setup' section. This page provides solutions and troubleshooting steps for common issues experienced during the installation and first load of the UE4 Editor.

UE4 Installation Troubleshooting - Epic Wiki # UE4 Installation Troubleshooting
