ANDROID_HOME : You must need to set android_home environment variable in order to run appium test. In previous post, We learnt about how to download and install android SDK software and its different packages in windows. In order to use android environment to run appium software automation tests, You must need to set ANDROID_HOME and path environment variables for describing path of android SDK folders to your operating system. Bellow given steps will explain you how to set ANDROID_HOME and Path Environment Variables in windows for android SDK software.