Ue4prereqsetup-x64.exe -

The installer bundles several standard Microsoft runtimes that Unreal Engine applications rely on to function: : Essential for rendering 3D graphics.

Windows PCs come in millions of different hardware and software configurations. A game developer cannot predict which version of the Visual C++ library or DirectX you have installed. ue4prereqsetup-x64.exe

When you run the installer, it checks your PC and installs or updates several critical components: ue4prereqsetup-x64.exe