Oracle Database 11g Express Edition is free and can be download from here:
http://www.oracle.com/technetwork/products/express-edition/downloads/index.html
Please follow the next steps in order to install the DB:
1. Run DB Setup. Click ‘Next’ on the ‘Welcome’ and ‘License Agreement
2. Make sure ‘Oracle Database 11g Express Edition’ checkbox is marked and press ‘Next’
3. Enter the Password for SYS/SYSTEM users and press ‘Next’
4. Press ‘Install’
5. Press ‘Finish’
Thanks for finally talking about >Oracle Database
Express Edition XE 10.2.0.1 Installation On Windows OS | Oracle Fusion Middleware
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