← Back to DatabaseHow to Fix Exit Code 40
Topic: Minecraft Java Edition Exit Codes | Status: Updated
What is this error?
Exit Code 40 in Minecraft Java Edition typically indicates a runtime issue caused by an incompatibility or a corruption in resources such as mods, worlds, or Java itself. This error can prevent players from launching the game, resulting in an overall frustrating experience.
How to Fix It
- Check Java Version: Ensure that you are using the latest version of Java. You can download the latest version from the official Oracle website.
- Allocate More RAM: Open the Minecraft Launcher, go to "Installations," select your current profile, and adjust the JVM arguments to allocate more RAM (e.g.,
-Xmx2G for 2GB).
- Update Minecraft: Ensure your game is updated to the latest version. Check the Minecraft Launcher for any available updates.
- Disable Mods: If you have mods installed, disable them and try launching the game. Re-enable them one by one to identify if any are causing the issue.
- Clear Minecraft Cache: Navigate to your .minecraft folder (usually found in %appdata% on Windows), and delete the
logs and cache folders to clear any corrupted files.
- Check Graphics Drivers: Ensure your graphics drivers are up-to-date. This can be done through your graphics card manufacturer's website or using a driver update tool.
- Reinstall Minecraft: If none of the previous steps worked, consider uninstalling and reinstalling Minecraft to ensure a fresh start with clean files.
Disclaimer: This is an educational guide. We are not responsible for data loss. Always backup your system.
