If you're looking for a DMDE license key for free, the safest and most reliable way to use the software is through its official Free Edition , which is genuinely free for personal use.
Data Recovery: Deep scans for NTFS, FAT, exFAT, Ext2/3/4, and more.
The Importance of a License Key:
Save to a Different Drive: Never recover files back onto the same drive you are scanning, as this will overwrite your lost data.