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Table of Contents
Install/Verify Java
The Minecraft Launcher has a bundled Java runtime, but you will need to have a Java runtime installed if you use MultiMC or if you want to use an specific Java Runtime other than the bundled one in a Minecraft Launcher “Installation”
You will also need to have a Java runtime installed if you use the jar version of the Fabric Installer.
STEP 1: Verify if Java is already installed
Open the Run dialog by using the Windows+R hotkey. Enter cmd in the textbox and click OK This will open a command window.
In the command window type java -version
and press Enter
If a Java version number is already installed you will see something like this:
STEP 2 Uninstall previous Java versions
If you already have Java installed and you want to update/replace it, first uninstall any Java version installed in your system using the Operating System normal procedure for uninstalling programs.
STEP 3 Install Java
To download the Java installer, go here
Pick Version 8 of the JRE, and the HotSpot JVM, download the installer for your operating system and install JAVA.
Go to STEP 1 to verify that Java was installed correctly and it's working as intended.