AllDupfor Windows

Over time, duplicate files can become a pain, clogging up your hard drive and serving no purpose. AllDup is designed to find your duplicate files and let you delete them, freeing up space and cleaning up your system. After installation,  add the folders or drives you want to search, and click start. The search process in AllDup is impressively quick and comprehensive. The duplicates are listed in groups, and to delete them, you open any group, select the duplicates you don't want, and then click the tick button.

AllDup is quite a deep program, and the search is flexible. For example, you might have duplicate MP3 files with different names, so searching by size might be more successful.

Overall, AllDup is a comprehensive duplicate finder let down by being overly complex and not very user-friendly.