Fix Fortnite bug "An unreal process failed: UE4-FortniteGame"

Fortnite it runs on what’s known as the “Unreal Engine”, software developed by Epic Games to provide 3D game functionality to other developers.

While the Unreal Engine element of the likes of Fortnite is generally kept out of sight of the end user, it is present and is an essential part of the likes of Fortnite, PUBG, and other leading games.

Unfortunately, it can happen that the engine gets damaged or corrupted, leading to strange errors such as “An unreal process failed: UE4-FortniteGame“error.

Because

The cause of this error is due to the way that Windows cannot work with the UnrealEngine application, required by companies like Fortnite to operate.

The problem is usually caused by problems with the configuration within Windows (which may include the registry), or with integration problems with DirectX and other third-party libraries.

To fix it, you need to first make sure that the Fortnite app is operating properly and then that you can clean up any potentially corrupted settings in the Windows registry or other third-party libraries.

Solution

1. Change compatibility settings for Fortnite

The first step is to make sure you have the correct “compatibility” settings for Fortnite.

This is a standard Windows process, which basically allows any version of Windows after 7 to run “older” software (designed for XP, etc.).

  • Press the “Windows” + “E” keys on your keyboard

  • Go to “C: / Program Files / Epic Games / Fortnite / FortniteGame / Binaries / Win64”

  • Scroll down to “FortniteClient-Win64-Shipping.exe”

  • The right button of the mouse

  • Select “Properties”

  • In the upper “tabs” select “Compatibility”

  • Scroll down and check “Turn off screen optimizations”

  • Click ok

  • Repeat this for any of the “FortniteClient …” EXE files in the / Win64 folder

  • Try the game again

2. Use the Fortnite “Verify” cheat

The next step is to try using the “verify” tool from the Epic Games launcher.

Doing this is really very simple:

  • If you have exited the “File Explorer” part of Windows, load it again

  • Find the folder it was in, and this time DELETE the file “FortniteClient-Win64 …”

  • After doing this, click on “Epic Games Launcher” on your desktop

  • Select “Fortnite”

  • Next to the green “Start” button, select the small gear icon

  • In the drop-down menu, select “Verify”.

  • This will perform a scan of your game files.

  • Let the scan finish and make corrections

  • Restart your PC and try the game again.

3. Change registry settings within Windows

The Windows registry is a central database responsible for storing everything from your desktop wallpaper to the applications you have recently used.

As you use your system, various items in this database can get damaged or corrupted, leading to errors like the one you are experiencing.

To fix this, you can go in and change any settings that have been identified as causing the error:

  • Press the “Windows” + “S” keys on your keyboard

  • Type “Rededit”, right click on the first list that appears and select “Run as administrator”

  • Look for the following: “HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlGraphicsDrivers”

  • Right click and select “New”> “REG_DWORD”

  • Change its name to “TdrDelay”

  • Change your data to “00000008”

  • Exit registry editor

  • Restart your PC

  • Try the game again

If the above does not work, it suggests that you have a problem with another aspect of the system.

Unfortunately, since UnrealEngine is built into Fortnite, it is not something that you can manually uninstall without causing further problems.

If you want to give it a try, you’d better reinstall the Fortnite game completely, or if you need further assistance, it is recommended that you speak to someone with specific knowledge / experience with your system.

There are several online communities that have the ability to do this: Reddit, SuperUser, and MicrosoftAnswers are the most prolific.

If you use your computer for business, it will probably be more effective to have someone fix it for you. Various providers on Fiverr offer reasonable prices and of course you have the local market that will be able to come in and provide direct support.

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