Stay safe and happy gaming/developing!
: If a game is failing to launch, you can often find the installer manually within the game's installation directory. Look for a folder named Engine/Extras/Redist/en-us/ or a Redist folder within the specific game's directory to find UE4PrereqSetup_x64.exe . ue4 prerequisites x64 setup link download
| Problem | Solution | |---------|----------| | "UE4PrereqSetup_x64.exe is not a valid Win32 application" | You are trying to run the x64 version on a 32-bit Windows. Use UE4PrereqSetup_x86.exe instead. | | Installation hangs at 0% | Run as Administrator. Disable antivirus temporarily. | | Error 0x80240017 – missing Windows Update | Install the latest Windows Updates, especially the update. | | Game still crashes after installing | Manually download and install the Visual C++ 2015-2022 Redistributable (x64) directly from Microsoft. | Stay safe and happy gaming/developing
Common issues
: If you are building the engine from source, the prerequisites are located in the Engine/Extras/Redist/en-us/ folder of your cloned repository (requires a linked GitHub and Epic Games account). What is included? Disable antivirus temporarily