Ue4prereqsetup-x64.exe

Antivirus software sometimes flags the installer because it modifies system folders.

If you’ve just installed a new game or opened your Task Manager to find a process called running in the background, don't panic. Here is the breakdown of what this file is and why it’s on your system. ue4prereqsetup-x64.exe

– UE4 uses DirectX 11 and DirectX 12 for rendering. This installer ensures that the necessary DirectX binaries are present, even on older versions of Windows 10 or 11. Antivirus software sometimes flags the installer because it

Developers include it so users don't have to manually hunt down individual DLL files or framework updates. – UE4 uses DirectX 11 and DirectX 12 for rendering

It shouldn't. If it does, the game launcher is incorrectly configured. Try reinstalling the game or checking for a launch option like -SkipPrereq in the game’s target line.