This article is for the Java developer who wants to learn Apache Spark but don’t know much of Linux, Python, Scala, R, and Hadoop. Around 50% of developers are using Microsoft Windows environment for development, and they don’t need to change their development environment to learn Spark. This is the first article of a series, “Apache Spark on Windows”, which covers a step-by-step guide to start the Apache Spark application on Windows environment with challenges faced and thier resolutions.