Disk Drill Professional 4.2.567.0 offers a free trial version that allows users to scan and preview recovered files. However, to recover files, users must purchase a license. The software offers various pricing plans, including a lifetime license and a yearly subscription.

While version 4.2.567.0 is now obsolete (doesn’t fully support NVMe drives, APFS, or exFAT > 2TB), its DNA lives on in modern Disk Drill 5 and 6. But retro enthusiasts still keep a portable copy of 4.2 on a USB stick for:

instead of the physical disk, preventing the dying hardware from giving up entirely during a long recovery scan. S.M.A.R.T. Monitoring: