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.
: Essential runtime components for C++ applications (typically covering versions from 2015 to 2022). DirectX Runtimes ue4prereqsetup-x64.exe
Most commercial UE4 games (e.g., Hellblade: Senua's Sacrifice , ARK: Survival Evolved , Street Fighter V , Octopath Traveler ) include the file in a subdirectory named: It shouldn't
. It is designed to install the necessary library dependencies required to run applications and games built using the Unreal Engine 4 (UE4) 1. Purpose and Functionality Purpose and Functionality Legitimate versions of this file
Legitimate versions of this file are almost always located within a specific game's installation directory (e.g., Steamapps\common\[GameName]\Engine\Extras\Redist\en-us\ ). If you find this file sitting loosely in your C:\Windows\ or System32 folders, it warrants a closer look.
While its sudden appearance can sometimes trigger antivirus warnings or leave users wondering if it is safe to delete, this file is a critical piece of infrastructure for running modern video games.
: For developers using the source, it is under Engine\Source\Programs\PrereqInstaller . How to Use It