HomeFixesFix: The necessary prerequisites have failed to install Epic Games Launcher Error

Fix: The necessary prerequisites have failed to install Epic Games Launcher Error

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Online gaming is one of the trending activities you can do on the Internet. With thousands of games to choose from, not to mention new games launched now and then, there are countless options available for you.

Titles from Epic Games are popular among online gamers. You can play Fortnite, Dauntless, Rough Company, Rocket League, Trackmania, Genshin Impact, God of War, and more. The Epic Games Launcher app available for Mac computers and Windows 10 PC gives you hundreds of game titles that you can play all day long. You can join interactive and multi-player games and meet other players.

Fixing-Epic-Games-Launcher-Error-The-necessary-prerequisites-have-failed-to-install
Image credit: Epic Games

However, there are times when your Epic Games Launcher encounters a problem. You may see the error codes SU-PQE1223SU-PQR1603LS-0019-IS-IZ01LS-0019, or LS-0019-IS-PQR3010. These error codes point out a necessary prerequisites failed installation issue or a permission problem that will prevent you from installing a new game or performing an update.

This error message will also appear when you encounter the problem on PC.

“Self Update Failed
The necessary prerequisites have failed to install. Please contact support.
Error Code: SU-PQR1603
Search our knowledge base to learn more.”

Fix-the-necessary-prerequisites-failed-installation-issue-on-Epic-Games-Launcher-app-on-Windows-10-PC

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Fixing Epic Games Launcher Error: The necessary prerequisites have failed to install

To continue enjoying your games or purchase new ones on your computer using the Epic Games Launcher, you need to troubleshoot the failed prerequisites installation error. Try to follow the solutions below and check if it resolves and fixes the problem or not.

Solution #1 – Restart your Computer

  • It helps if you exit your applications and shut down your Windows 10/11 PC or macOS computer.
  • Wait for a few seconds.
  • Turn on your computer and relaunch the Epic Games Launcher.

Solution #2 – Run your Epic Games Launcher as Administrator on PC

  • Go to your Epic Games Launcher icon.
  • Right-click on it.
  • Select Run as administrator.
  • Click Yes when a notification pops up.
Run-Epic-Games-Launcher-as-Administrator-on-Windows-10-PC

Solution #3 – Allow Read and Write Permission on your File Location on Windows

  • Go to the folder where you want to save your game.
  • Right-click on it.
  • Select Properties.
  • Go to the Security tab.
  • Click your username.
  • Navigate to the Allow section.
  • Check the boxes next to Read and Write.

Solution #4 – Update your Epic Games Launcher

  • Open the Epic Games Launcher.
  • At the bottom left, click the Gear icon to open the Settings menu.
  • Click the Restart and Update button.

Solution #5 – Add -SkipBuildPatchPrereq to Epic Games launcher Target Parameter

  • Exit the Epic Games Launcher.
  • Go to its icon and right-click on it.
  • Select Properties.
  • Go to the Shortcut tab.
  • Look for the Target section.
  • Click the parameter entry and go to the end of the line.
  • Add the following after the end of the parameter: -SkipBuildPatchPrereq.
  • Click Apply.
  • Click OK.

Do you have other ideas that will help fix the Epic Games Launcher update installation issue? You can share your solutions with us in the comment section below.

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