If you follow this guide carefully—using the Oracle Archive, applying compatibility modes, and isolating your environment—you can have a stable Oracle 10g database running on Windows 7 64-bit. Remember: this is a time capsule, not a production solution. Use it wisely, and always plan to migrate your data to a modern database (Oracle 19c or 23ai) as soon as practical.
The free "Express Edition" of 10g is sometimes found on academic mirrors or community archives like the Internet Archive . Compatibility and Requirements Oracle Database 10g Download For Windows 7 64-bit
512 MB minimum, though 2 GB is recommended for the 64-bit version. Disk Space: Approximately 3 GB of free space. If you follow this guide carefully—using the Oracle