Assembling jre 11 and java fx is a pita. Instead use a combined jdk from https://www.azul.com/downloads/zulu-community/?version=java-11-lts&architecture=x86-64-bit&package=jdk-fx == netbeans == ; Cannot run program “cmd”, Malformed argument has embedded quote * https://oak.dev/2020/03/02/cannot-run-program-cmd-malformed-argument-has-embedded-quote/ * Edit C:\Program Files\NetBeans 11.x\etc\netbeans.conf * Append to “netbeans_default_options”: -J-Djdk.lang.Process.allowAmbiguousCommands=true ; Fatal Error Unable to find package java.lang in classpath or bootclasspath