Oracle Universal Installer Windows Download !new! Page

| Issue | Cause | Resolution | |-------|-------|-------------| | setup.exe does nothing | Not run as Admin | Right-click → Run as administrator. | | “PATH environment variable too long” | Windows PATH exceeds 1023 chars | Shorten PATH via System Properties → Environment Variables. | | Prerequisite check fails for OS version | Oracle not supported on Home edition | Use Windows Server or Pro/Enterprise edition. | | “Oracle Inventory not found” | Previous install corruption | Delete C:\Program Files\Oracle\Inventory , re-run as Admin. | | Java not found error | Missing or wrong JRE; OUI embeds its own JDK | Ensure no JAVA_HOME override interfering. | | Antivirus blocks OUI | Real-time protection | Temporarily disable antivirus during install. |

Instead, the OUI is included inside every Oracle software installation kit. To obtain OUI, you must download the actual Oracle product (e.g., Database, Client, Grid Infrastructure) from Oracle’s official distribution channels. oracle universal installer windows download