If you are a developer using the Unreal Editor, the launcher keeps a clean copy of the installer ready.
Navigate to the official Microsoft Visual C++ download page.
If system files are corrupted, open the Command Prompt as an administrator and type sfc /scannow . Let Windows repair its core files before re-running the setup.
Do NOT use the UE4 prerequisites installer. Instead:
The option is found in your Unreal Engine project's settings: Ue4 Prerequisites -x64- Setup
Necessary for rendering graphics.
Choose or the conflicting Visual C++ package from the list.
The installer acts as a wrapper for several critical system files:
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. If you are a developer using the Unreal
Windows often blocks third-party installers from modifying system directories or registry entries if they lack proper permissions.
Now that you've downloaded the prerequisites, follow these setup steps:
Provides the necessary DirectX End-User Runtime files (often legacy components like DX11 dependencies) required for rendering 3D graphics and handling audio processing.
: Just as developers must ensure that in-game interactions "make sense" to maintain immersion, the setup process must be consistent with the hardware to maintain a stable creative workflow. Let Windows repair its core files before re-running
The first time you install a UE4 version (e.g., 4.26, 4.27) from the Epic Games Launcher, the launcher will automatically trigger the prerequisites setup. It runs before the engine binaries are verified.
Visit the official Microsoft download center and search for the . Download and run the dxwebsetup.exe file.
The setup packages several critical runtime environments into a single executable:
Go to Control Panel > Programs and Features , find "UE4 Prerequisites (x64)", right-click it, and select Repair .