How to run a JAR file in Windows 11/10 Since Java or JAR files can’t run on Windows on their own, you need to install the Java Framework or what is popularly called Java.

Learning Java can help aspiring developers understand the foundations of programming because of the language’s wide usage and functionality.

The article therefore also describes a JWS application installer. JWS Primer Java Web Start allows Java applications to be launched via a link to a JNLP file.