What is LowLevelFatalError

LowLevelFatalError is typically associated with Unreal Engine games but can also occur in other applications. It’s an error that signals a critical failure in the application or game, preventing it from running properly. This error can manifest due to various reasons, including outdated graphics drivers, insufficient system resources, corrupted game files, or compatibility issues. Encountering a LowLevelFatalError can be a distressing experience for any Windows 10 or Windows 11 user. This error often appears during the launch or gameplay of certain video games or when using specific applications. It can cause the program to crash, leading to frustration and a disruption in workflow or entertainment. This article aims to demystify the LowLevelFatalError, explaining its causes and providing a comprehensive guide to resolve the issue across Windows 10 and Windows 11 platforms.

Why Does LowLevelFatalError Appear?

Several factors can trigger a LowLevelFatalError:

  1. Outdated or Corrupted Graphics Drivers: Graphics drivers that are out of date or corrupted cannot properly communicate with the game or application, leading to errors.
  2. Incompatible System Specifications: If your computer does not meet the minimum requirements for the game or application, you may encounter this error.
  3. Corrupted Game/Application Files: Corrupted or missing files can prevent the game or application from launching correctly.
  4. DirectX Issues: Problems with your DirectX installation can lead to LowLevelFatalErrors, especially in games.
  5. Software Conflicts: Other programs running in the background can interfere with the application or game, causing errors.

Download Windows Repair Tool

Download Windows Repair Tool

compatible with windows 11

There are special repair utilities for Windows, that can solve problems related to registry corruption, file system malfunction, Windows drivers instability. We recommend you use Advanced System Repair Pro to fix LowLevelFatalError.

How to Fix LowLevelFatalError manually

Below are several methods to resolve the LowLevelFatalError on Windows 10 and Windows 11. It’s recommended to try these solutions in order, checking if the issue is resolved after each step.

1. Update Graphics Drivers

Keeping your graphics drivers up to date is crucial for the smooth operation of games and applications:

  1. Right-click on the Start menu and select Device Manager.
  2. Expand the Display adapters section, right-click on your graphics card, and choose Update driver.
  3. Select Search automatically for updated driver software and follow the prompts.

You can also use IObit Driver Booster to perform automatic updates. It is way faster than going through the manual process because the utility will find aged or malfunctioned drivers and update them on its own. Here is the link to download it.

Download Driver Booster

2. Verify Game/Application Files

For games, especially those on platforms like Steam or Epic Games Store, use the built-in verification tool:

  • Steam: Go to Library > Right-click the game > Properties > Local Files > Verify integrity of game files.
  • Epic Games Store: Library > Click on the three dots under the game > Manage > Verify.

3. Run the Game/Application as Administrator

Giving the game or application administrator privileges can sometimes resolve permission-related issues:

  • Right-click on the game/application shortcut and select Run as administrator.

4. Update Windows

Ensure your Windows OS is up to date, as updates can include fixes for compatibility and performance issues:

  1. Go to Settings > Update & Security > Windows Update > Check for updates.

5. Reinstall DirectX

Since DirectX issues can cause this error, reinstalling DirectX may help:

  1. Download the latest version of DirectX from the Microsoft website and follow the installation instructions.

6. Close Background Applications

Software conflicts can lead to errors, so close unnecessary applications before launching the game or application:

  1. Press Ctrl + Shift + Esc to open the Task Manager and close programs that are not needed.

7. Increase Virtual Memory

Low system resources can cause LowLevelFatalErrors, so increasing your virtual memory can help:

  1. Go to Settings > System > About > System info > Advanced system settings > Settings under Performance > Advanced > Change under Virtual memory.
  2. Uncheck Automatically manage paging file size for all drives, select Custom size, and increase the initial and maximum size. Click Set and then OK.

8. Check for Hardware Issues

Faulty hardware, like RAM or GPU, can also be a culprit. Running a hardware diagnostic or checking the temperature of your components can help identify issues.


LowLevelFatalError can be a significant roadblock, but with the steps outlined above, most users will be able to resolve the issue and return to their normal activities. If the problem persists after trying all the solutions, it might be worth consulting with a professional or reaching out to the game/application’s support team for further assistance.

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