In the Application Event Log on the EV server:
Source: MsiInstaller
Event ID: 11714
Task Category: None
Level: Error
Keywords: Classic
Description:
Product: Veritas Enterprise Vault Indexing Redistributable -- Error 1714. The older version of Veritas Enterprise Vault Indexing Redistributable cannot be removed. Contact your technical support group. System Error 1612.
The upgrade process is unable to remove the current version of the Symantec Enterprise Vault Indexing Redistributable.MSI before installing the new version.
Locate these msi files within the installation media for 11.0.1 (under Server\EVTmp), right-click the msi and uninstall it. Perform the installation for 12.3 once again.
The Veritas Enterprise Vault Cloud Storage.msi also has to be uninstalled from the 11.0.1 CHF5 installation media.