There are three simple ways to set JAVA_HOME in Windows. This tutorial shows you how to do it manually, from the command line and through the installer.

Here are the three easiest ways to fix Java’s “not recognized as an internal or external command” error: Install or reinstall Java and the JDK on your computer Add Java’s bin directory to the computer ...

If Java is not recognized as internal or external command, you need to make sure that the installation is not problematic and its path is recognized as system variables.