Secure Vaults are available only in supported diCleaner editions. If the feature does not appear, confirm which edition you installed and whether that edition includes Vaults.
If the tool is missing, confirm the edition and current version. Do not install an unknown build solely to obtain the feature.
Before switching editions, preserve the original app and verified vault backups. Confirm that the target edition officially supports opening the vault format.
Do not delete the last working application copy or vault because another edition is installed.
Feature absence does not mean protected data was deleted.