TreeSize Free is a free disk space analyzer tool that allows you to quickly determine how much space your hard drive is taking up.

TreeSize Free uses a familiar folder interface to help you sort through the largest folders and files on your computer. It can search entire flash drives, internal hard drives, network drives, and external hard drives, or you can use it to analyze just one folder from those storage media.

There isn't much I don't like about this show.

I like TreeSize because, unlike File Explorer, you can easily see which folders are larger than other folders, and which files in those folders are the largest and smallest. This is the main reason you want a disk analyzer, so in that sense this program does exactly what you expect it to do.