ElasticSearch and Java environment variable

STEP 1

Can you verify JAVA_HOME is set to C:\Progra~1\Java\jdk1.8.0_20,

C:\>echo %JAVA_HOME%

Also, verify java command is available,

 java -version

Reference

Check if JAVA_HOME is present in environment using batch script

STEP 2

If JAVA_HOME is not set, please follow the steps provided here – How to Set Java Home in windows

Summary ,

• Right-click the My Computer icon on your desktop and select Properties.
• Click the Advanced tab.
  Click the Environment Variables button. Under System Variables, click New.
• Enter the variable name as JAVA_HOME.

• Enter the variable value as the installation path for the JDK.

  (eg. C:\Progra~1\Java\jdk1.8.0_20).

• Click OK.
• Click Apply Changes.