I tried this program on a few smaller folders, and it worked fine. However, when I went into a bigger folder (Libraries, Photos, etc), the program would run for several hours just fine, but when I'd click on "Results", the program would appear to freeze. Leaving for an hour or two would not unfreeze it. Clicking on "Help" or "Contact The Author" doesn't work while frozen wither. I'll try a few more times with smaller files.