Try the free preview scan first. If it sees your lost files, the paid version will likely get them back. For HDDs and USB drives, it’s a 4-star tool. For SSDs, a 3-star tool at best.
TestDisk (free, complex), EaseUS Data Recovery Wizard (faster UI, more expensive), Recuva (better for simple deletion). FULL Active Unformat Professional 3.0.8.0