If you need to recover more than 1 GB or require advanced features like lost partition recovery, you must purchase a license to receive an official activation key via email.
However, there are legitimate ways to recover data for free: Stellar Free Edition : This is a standalone version that does not require an activation key Data Limit : You can recover up to of data for free. File Size Limit : Individual files must be under depending on the specific build). Capabilities stellar data recovery standard activation key free