FULL-DISKfighter is an all-in-one scanner and hard drive cleaner that detects problem files on your PC.
More specifically, much like CCleaner, FULL-DISKfighter scans your PC's hard drive to locate files it considers junk. Often these are files that are taking up too much space on your drive, but they can also be duplicate files the tool has spotted. The ultimate goal is to locate these unnecessary files and delete them so you can clear space on your PC's hard drive. This will consequently allow your computer to run faster and more efficiently.
FULL-DISKfighter's scanning speed depends in large part on just how big your PC's hard drive actually is. Larger drives will have slower scans with FULL-DISKfighter, but each scan is adequately thorough. At the end of its scan, FULL-DISKfighter provides a numerical summary of the files it's found.
Unfortunately, the trial version does not tell you which files it has located by name, nor does it automatically delete the files. For that, you must acquire a license key for the full version at a cost. What the trial version of FULL-DISKfighter does do, however, is make you aware of files and folders that might be problematic so you can determine what your next course of action should be: either purchasing the full version and taking care of any issues or leaving the issues as is.
If you're just curious about your hard drive content, FULL-DISKfighter will tell you in short order.