Disk Space Magic

Disk Space Magic is a vintage application designed to help users with low-spec computers free up some space by revealing the largest files on the drive while categorizing them by their size. Also, the tool's context menu lets you decide the actions you'll take regarding a file or a cluster of them.
After the installation is done, a small selection window will pop up. Being a demo version, every folder and partition is grayed-out, meaning that you cannot actually use it for anything else besides desktop items. Still, one can get an idea about what this utility can do even if it cannot scan and process more than a single location.
Once a disk/folder is scanned, another layout with the identified files is generated. This panel may look a lot more colorful, and that's because each file is assigned with a color that reflects its actual size.
Clicking on any of the results will open up a brief context menu providing a handful of options that allows one to quickly delete the files, refresh the list or open the location in File Explorer.
To conclude, Disk Space Magic is indeed a tool that can identify possibly useless files located on your drives. However, the tool didn't really withstand the test of time, as there are many other programs way powerful and complex out there.

Limitations in the unregistered version