Why do I get the error “-IRQL_not_less_or_equal” when starting Fortnite?
This issue is often fixed by verifying the integrity of your Fortnite game files. To verify game files on the Epic Game Launcher:
- Open the Epic Games Launcher.
- Find the game in your Epic Games Library.
- Click the three dots on the right side of the game line.
- Select Manage.
- Click the Verify button.
- Wait for validation to complete.
It may take a while to verify all your files.