Epic Games LS-0019
What is this error?
Epic Games Launcher encountered a prerequisite error. Required software components failed to install or are missing.
Common causes
- failed prerequisite installation
- corrupted Visual C++ runtime
- Windows Installer service issue
- insufficient disk space
- missing .NET Framework
How to fix it
- Install prerequisites manually
- repair Visual C++ runtimes
- restart Windows Installer service
Too many steps? Crashless can diagnose this automatically — checks your drivers, temps, VRAM, and 400+ known error patterns.
Get free AI diagnosis Detailed analysis
Epic Games error LS-0019 means the game's prerequisites (like Visual C++ or DirectX) failed to install. The launcher tries to install these automatically but something went wrong.
How to fix it:
- Navigate to the game's installation folder, find the 'Engine/Extras/Redist' or 'Prerequisites' folder, and manually run the installers inside
- Install all Visual C++ Redistributables (2005-2022, x86 and x64) from Microsoft
- Install DirectX End-User Runtime Web Installer from Microsoft
- Restart the Windows Installer service: open Services (services.msc), find 'Windows Installer', right-click > Restart
- Make sure you have enough free disk space — prerequisites need space to extract and install
- Run Epic Games Launcher as Administrator
- Enable .NET Framework 3.5 and 4.8 in Windows Features
- If nothing works, uninstall and reinstall the game — the fresh install will retry prerequisite installation
When to seek help
If this error keeps happening after trying the fixes above, it may point to a deeper hardware or system issue. Consider professional help if:
- The crash occurs across multiple games or applications
- You see the same error after a clean Windows install
- Your PC is less than a year old (could be a warranty issue)
- You smell burning or hear unusual sounds from your PC
Or let Crashless do the deep analysis for you -- our AI checks drivers, temps, event logs, and 400+ known patterns automatically.
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