Setting the JAVA_HOME Variable in Windows

How to Set the JAVA_HOME or JRE_HOME Variable

To set the JRE_HOME or JAVA_HOME variable.  Locate your Java installation directory. By default path will be C:\Program Files\Java\jre1.8.0_221.




To change the environment variables

In Windows 7, Right click My Computer and select Properties -> Advanced

In Windows 8, Go to Control Panel -> System -> Advanced System Settings
In Windows 10, Search for Environment Variables then select Edit the system environment variables.

Click the Environment Variables button.

Under System Variables, click New.

In the Variable Name field, enter either:

JAVA_HOME if you installed the JDK (Java Development Kit) or 

JRE_HOME if you installed the JRE (Java Runtime Environment).

In the Variable Value field, enter your JDK or JRE installation path :

JRE - C:\Program Files\Java\jre1.8.0_221

JDK - C:\Program Files\Java\jdk1.8.0_221

Click OK and Apply Changes as prompted.

Note : Windows 7 screenshots used