A: 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 gameโs target line.
A: The executable itself is small, but the VC++ redistributables it downloads are roughly 15-25 MB, and DirectX runtime can be up to 100 MB. These are one-time downloads.
In simple terms, this file is the Unreal Engine 4 Prerequisite Installer. ue4prereqsetup-x64.exe
"Prerequisites" are background components your operating system needs before a major program (like UE4) can run correctly. Think of it as laying the foundation before building a house.
The -x64 suffix indicates it is designed for 64-bit versions of Windows (which is standard on most modern PCs). A: It shouldn't
Short answer: Yes, after a game is successfully installed and runs without errors.
Long answer: This file is a one-time setup tool. Once the prerequisites are installed at the system level, the executable serves no ongoing purpose. Deleting it will not affect game performance or launch speed. However, consider: In simple terms, this file is the Unreal
Recommendation: Leave it in place. It does not run in the background, consume RAM, or phone home to Epic. It is inert until called by an installer.
You will typically find this executable in one of two locations:
Yes, the genuine file is completely safe. It is digitally signed by Epic Games, Inc. You can verify this by:
However, malware authors sometimes name malicious files ue4prereqsetup-x64.exe to blend in. To stay safe:
