The Java Runtime Environment spawns a JVM, which is a software layer that runs on top of a computer’s operating system, providing additional services specific to Java.

The Java Runtime Environment (JRE), also known as Java Runtime, is part of the Java Development Kit (JDK), a software development environment for writing Java applications.

The Java Runtime Environment (JRE) is what you get when you download Java software. Java technology allows you to work and play in a secure computing environment.

JAVA_HOME is an operating system environment variable that directs a user to the file system location where the JDK or JRE was installed.

Learn how to fix The registry refers to a nonexistent Java Runtime Environment installation or the Runtime is corrupted error on Windows 11/10.