When you use Duplicate Commander you scan your computer for duplicate files in order to save space and make your computer run better.
More free space always means better performance, so you should run Duplicate comnnacer and enjoy a better computing experience.
When we have a big HD we usually waste memory space by saving the same file several tmes, when you download them or when you copy photos from the camera. That means you can have some GBs wasted.
Duplicate Commander offers an easy way to find all those duplicate files and eliminate them.