It's also highly recommended to narrow the search by setting time, size or subfolder depth restrictions, because if don't set additional restrictions, the duplicate search might be very slow. In order to start using the duplicates search, simply set the Search Mode combo-box in the search options window to 'Duplicates Search'.
When you switch to the 'Duplicates Search' mode, SearchMyFiles scans the files according to your preferences, like it does in the regular mode, but instead of displaying the list of all files, it only displays the files with identical content (duplicate files).
SearchMyFiles utility provide a special search mode that allows you to easily find duplicate files in your system.