- Ensure you are logged in as a user with Administrator privileges.
- Stop all Oracle services (if any are running).
- If possible, remove the Oracle software by invoking the Oracle Universal Installer (OUI) and remove the software.
- Remove the entries in the Windows registry.
- Clean up environment settings.
- If you could not use the OUI to uninstall the software, delete the software and icons at this point.
- Empty the recycle bin.
One word of caution is to be very careful editing registry entries.
Dig Deeper on Oracle database installation, upgrades and patches
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