Disk Drill will even recover data from corrupted drives. Your USB drive can break down in a number of ways. Your drive's Master Boot Record (MBR) or Partition Boot Record (PBR) could have invalid data or a corrupted directory structure. You can even corrupt your data if you unmount your drive improperly. Either way, you will find it difficult to recover deleted files from the flash drive without Disk Drill.
Get your files back with Disk Drill