Always run Full first for partition loss. You can run Fast later if Full gives too many false positives.
For simple "emptied Recycle Bin" recovery, use a simpler tool. But for formatted drives, deleted partitions, or RAW disks, version 4.2 Full is a reliable choice in any technician's toolkit. diskinternals partition recovery 4.2 full
Version 4.2 is particularly valued for its stability and support for legacy and modern file systems (FAT, NTFS, exFAT, Ext2/3/4). The "Full" version removes the saving restriction found in the trial, allowing unlimited data export. Always run Full first for partition loss