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How to Fix Exit Code 12

Topic: Minecraft Java Edition Exit Codes | Status: Updated

What is this error?

Exit Code 12 in Minecraft Java Edition indicates an issue related to insufficient memory allocation for the game. This error often arises when the Java Virtual Machine (JVM) does not have enough resources to run Minecraft smoothly.

How to Fix It

If you encounter Exit Code 12, follow the steps outlined below to allocate more memory to Minecraft and resolve the issue.
  1. Open the Minecraft Launcher: Launch the Minecraft Java Edition using the official launcher.
  2. Select the Installations Tab: Click on the "Installations" tab located at the top of the launcher.
  3. Edit Your Profile: Hover over the installation you are using and click on the "More Options" button.
  4. Increase JVM Arguments: Look for the "JVM Arguments" field. The default usually reads something like -Xmx2G. Increase this value (e.g., -Xmx4G) to allocate more RAM, depending on your systemโ€™s capabilities.
  5. Save Changes: After adjusting the RAM allocation, click "Save" to apply the changes.
  6. Restart Minecraft: Close the launcher and restart it to ensure the new memory settings take effect.
  7. Check Your System's Memory: Ensure your system has a sufficient amount of RAM available (at least 4GB for Minecraft). Close other applications that may be consuming memory resources.
If you continue to experience issues after following these steps, consider verifying your game files or reinstalling Minecraft for a fresh start.
Disclaimer: This is an educational guide. We are not responsible for data loss. Always backup your system.