We will be finding out the way to set oracle environment path for windows server. What is ORACLE_HOME used for? The ORACLE_HOME is an environment variable which is used to set and define the path of Oracle Home (server) Directory. How to set ORACLE_HOME in Environment variable To set the ORACLE_HOME environment variable go to My Computer -> Properties -> Advanced -> Environment Variables -> System Variables -> New/Edit/Delete. Please go through following video to understand the oracle environment path for windows servers.