Before you install or upgrade ePO - On-prem, run the Pre-Installation Auditor (PIA) tool to reduce or prevent upgrade issues. Running the tool automates the verification tasks included in the upgrade process.
Running a Product Compatibility check
The PIA tool runs a Product Compatibility Check to verify that your managed products are compatible with the latest version of ePO - On-prem. If it finds discrepancies, the tool creates a list of blocked or disabled product extensions.
Blocked extensions — Upgrade of ePO - On-prem is blocked.
Disabled extensions — Upgrade continues, but extension isn't initialized until a compatible replacement is installed.
For a complete list of the checks the PIA performs and information about how to run it at any time, see KB71825.