Find the folder named EpicGamesLauncher or your specific game's folder and delete the Saved or Intermediate subfolders if they exist.
:Navigate to your Windows Control Panel > Programs and Features . Locate the Microsoft Visual C++ 2015-2022 Redistributable (x64) , right-click it, and select Repair . This often breaks the "Modify/Uninstall" loop.
Share your experience in the comments below — the steps are identical, but Epic keeps moving the folder paths.
If you intend to develop C++ projects in UE4, your development environment must include specific Visual Studio workloads and components. The Epic Games Launcher automatically installs the necessary prerequisites when you install the engine, but if you are building from source code or using Perforce, you may need to configure Visual Studio manually.
Install the files, reboot your system, and attempt to run your application again. ue4 prerequisites x64 setup exclusive
This is a fatal error often caused by a conflict with an existing version of the Visual C++ Redistributable.
: Follow the prompts to install or "Repair" the existing installation. Restart Your System
How to Fix UE4 Prerequisites (x64) Setup Errors: The Complete Troubleshooting Guide
Many users think their game is broken, but the real issue is a stalled Windows Installer service. Running msiexec /unregister / msiexec /regserver in an admin command prompt often fixes it. Find the folder named EpicGamesLauncher or your specific
I can give you the exact steps to get your software running.
That said, be cautious with copies downloaded from unofficial websites, email attachments, or unknown cloud storage links. Always verify the digital signature before running the installer.
Don’t just reinstall the Epic Launcher. That won’t help. Here’s the real solution:
Navigate to your game or engine installation directory. For the Epic Games Launcher, the default path is usually: C:\Program Files (x86)\Epic Games\Launcher\Portal\Extras\Redist\ (For standalone games, look inside the game folder under Engine\Extras\Redist\ ) Locate the UE4PrereqSetup_x64.exe file. Right-click the file and select . This often breaks the "Modify/Uninstall" loop
Are you having issues with or Visual C++ specifically?
If you are building an indie game in UE4, you must include the prerequisites installer alongside your game files so players whose PCs lack these libraries can play your game.
Have you recently or Windows operating system? What antivirus software are you currently running?
Follow these troubleshooting steps in order. Move to the next step only if the previous one does not resolve the issue. Step 1: Run the Installer Directly as Administrator