tl dr - CCleaner is free and has a utility that does the same darn thing. I'm so angry I paid these people anything, really. Constant reactivations, disabling your software, paying more than once to use what you paid for. But really, this is unacceptable in this day and age.

Always seems like they're going overboard to make a point. I always hate reviews from people who write in all caps. They will only activate your software a couple times before they charge you for a new copy.

ANY hardware change will cause the software to disable and you'll have to re-activate it. The software creates a hash based on your hardware for copy protection but it goes overboard. Duplicate File Finder, is a tool designed to. I disabled the sound card on my motherboard and it required re-activation. Your hard drives may be full of documents, iTunes, iPod, MP3, Photos, and Video and many of them are redundant. Ashisoft's customer support is nearly non-existent. The software works, but you can get similar results from the free version of CCleaner, and I would advise anyone that is looking to remove duplicates to consider any other alternative. Terrible, awful, horrible support and draconian activation policy

Ashisoft duplicate photo finder pro