5 Ways to Fix the “Epic Games Launcher Setup Wizard Ended Prematurely” Error

Many players install Epic Games to play Fortnite and for its free game offers. However, an Epic Games Launcher Setup Wizard installation error occurs for some users when they try to install or reinstall Epic Games. This scenario has popped up around the community a few times, often accompanied by the message: "There is a problem with this Windows Installer package. A program run as part of setup did not finish as expected."

1. Run the Epic Games Installer With Task Manager

Many players confirm they’ve resolved the “Epic Games Launcher Setup Wizard ended prematurely” error by running the setup file for Epic Games via Task Manager with administrator privileges enabled. Doing this will grant the installer the necessary rights to install Epic Games. Follow these steps:

Right-click any empty part of your taskbar to select the Task Manager shortcut.
Open the Processes tab and click on Run this new task (If you’re on Windows 10, click on top left “File” then “Run new task”).
Type msiexec.exe and also check the box “create a new task with administrator privileges.”
Select the Browse option and first select All files inside the drop-down menu.
Open the folder that includes the downloaded Epic Games installer file, select the EpicInstaller file, and click Open.
Press OK to run the installer file.

2. Install the Epic Games Launcher Via the Microsoft Store

The official Epic fix, which players confirm to work, for the “Epic Games Launcher Setup Wizard ended prematurely” error is to install the Epic Games Store app via the Microsoft Store. You don’t need a setup file to install the Epic Games MS Store app. This is how you can install it:

First, open the Microsoft Store by clicking its shortcut on the taskbar or Start Menu.
Type Epic Games Store in the search box and select the matching result.
Click on Install to get the Epic app.

3. Delete Old, Leftover Epic Games Folders

If the error occurs when trying to reinstall the software, rather than a fresh install, try deleting leftover Epic Games folders. Some players confirm erasing leftover Epic folders can resolve this gaming issue. You should make sure no Epic software elements are left in your system:

Open Program Files (x86) in File Explorer and right-click the Epic Games folder to select Delete.
Open the registry directory HKEY_CURRENT_USER\Software\Epic Games\Unreal Engine\Builds and delete any build entries, if present.
Delete the folders %userprofile%\AppData\Local\UnrealEngine and %userprofile%\AppData\Local\UnrealHeaderTool (in case they were created).

4. Install .NET Framework 4.8

.NET Framework 4.8 is a module feature that needs to be enabled on your PC to install the Epic Games desktop software. Check if that feature is installed, and enable it if it isn’t:

Click the search box on the Windows 11/10 taskbar and enter Windows features.
Select the Turn Windows features on or off search result.
Select the .NET Framework 4.8 checkbox if that feature isn’t enabled.
Click OK to proceed with the installation of the feature.

5. Address Path Length and DirectX Issues

The error sometimes pops up when it is downloading DirectX. Win 10 should have dx 11.3 and dx12 installed. If you are using an OEM version of windows, or OEM version of Direct X that could be the issue. Additionally, it may be trying to download a patch that gets corrupted because the path its trying to save to is too long. Unreal uses an Ansi version of CreateFile() which has a 260 character limit on the path. If your installation path is too long, the patch may fail.

Summary of Troubleshooting Methods

Method	Primary Action
Task Manager	Run installer with administrative privileges
Microsoft Store	Install via MS Store to bypass setup file issues
System Cleanup	Delete leftover folders in Program Files and AppData
.NET Framework	Enable .NET Framework 4.8 in Windows Features
Path Shortening	Ensure the installation path is under 260 characters