There are two ways of searching (scanning) the software. One is standard mode and second is advanced mode.
1. Standard search
This searching criteria is used in case of files folders deletion or data loss due to any virus infection or deleted, missing partition
2. Advanced search
This option is used to recover data from formatted partition drive or any other data recovery which is not possible on standard search.
You have to select the logical partition (generally FAT or NTFS file system) by clicking on search more partition button to recover all the partition.
If you have formatted the drive from FAT to NTFS file system and data was originally stored in FAT partition then recovery take place by selecting the FAT partition drive not the NTFS partition drive.
If you have formatted the drive from NTFS to FAT file system and data was originally stored in NTFS partition then recovery take place by selecting the NTFS partition drive not the FAT partition drive.