Data Rescue 5 for Mac Guides
You will be automatically prompted for your serial number upon first launching Data Rescue. If you are using a demo serial and later need to activate the full version, follow these steps:
Open Data Rescue.
Go to the Help → Activate drop-down menu option.
Enter your name and serial number into the software and press the ‘Activate’ button to unlock the full version of the software that will allow you to recover files.