How to fix the Oracle error INS-40417: The installer has detected an unused Oracle Cluster Registry (OCR) location registry key (string) on the system.?

In this post, you’ll learn more about the Oracle ErrorINS-40417: The installer has detected an unused Oracle Cluster Registry (OCR) location registry key (string) on the system. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

INS-40417: The installer has detected an unused Oracle Cluster Registry (OCR) location registry key (string) on the system.

Reason for the Error INS-40417: The installer has detected an unused Oracle Cluster Registry (OCR) location registry key (string) on the system.

Cause: OCR location registry key (string) is left behind from a previous installation.

How to fix the Error INS-40417: The installer has detected an unused Oracle Cluster Registry (OCR) location registry key (string) on the system. ?

You can fix this error in Oracle by following the below steps

Action: Delete the OCR location registry key (string) and restart the installer.