Run these in addition to the Pro Tools installer.
Review the licenses on your iLok at or in iLok License Manager.The bonus plug-ins (introduced starting with v12.2) use a Pro Tools Plan or Pro Tools HD Plan license.Pro Tools HD 12 software requires both Pro Tools 12 and Pro Tools HD 12 iLok authorizations (licenses) to run.This can be a single license or in a bundle. Pro Tools 12 software requires a Pro Tools 12 iLok authorization (license) to run.Pro Tools 12.5.2 Read Me for Windows (PDF).
Please review the following documents for important compatibility information, known issues, error messages, issues resolved, etc.