Unlike many of the comments about File Finder, this one is supportive. I have used it on three computers so far without losing valuable files. However, there is a problem. I am using the free version of CCleaner, and have no way to find out whether this "feature" also exist on the paid version. Here it is: when I try to narrow the locale of the search for duplicates by using "Add" and then specifying a subfolder, duplicates are not found. Yet if I do the search on the entire disc, the duplicates in this folder are found. Is this an oversight, a bug, or a feature of the free version?
Ccleaner free and paid a nearly feature simular. The section your asking about is identical in both versions