Step 2: Manually Update Microsoft Visual C++ Redistributables

If the installer throws error , it usually means corrupt registry keys are blocking the installation. Microsoft offers a dedicated tool to fix this.

The UE4PrereqSetup_x64.exe file is automatically included in the package when you build (or "package") your Unreal Engine project for distribution. It can be found in a specific subfolder of your project's build directory:

This package is a vital bundle of software components required to run Unreal Engine applications on 64-bit Windows operating systems. Without it, games and development tools simply cannot communicate with your computer's hardware. What is UE4 Prerequisites (x64)?