Famous Define Jre_Home Windows Ideas. The third way to configure the windows java_home environment variable is to use the command line and invoke the setx command as follows: 3.create the java_home environment variable by clicking the new.

The third way to configure the windows java_home environment variable is to use the command line and invoke the setx command as follows: This file does not exist on its own so you need to. Java_home is an operating system (os) environment variable which can optionally be set after either the java development kit (jdk) or the java runtime environment (jre) is installed.