Pirated versions often have modified code that can cause the software to crash during the sensitive process of scanning a failing drive, potentially making data recovery impossible. No Technical Support: Official users get access to CleverFiles Support
Future research directions include:
Disk Drill 4.5.616.0 Review: Powerful Data Recovery, but Is the Upgrade Worth It?
: An open-source, powerful recovery tool that works on multiple platforms (though it has a command-line interface).