There was a download of FullDisk 5.3 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The software relates to System Utilities. This program was originally developed by Paul Gerhart Software. We recommend checking the downloaded files with any free antivirus.
From the developer:
FullDisk lets you view your hard disk contents
on a tree-by-tree basis. FullDisk gives you a
Tree to navigate among your local or network
drives and their folders. Select a drive or
folder and FullDisk computes the size of that
branch and shows you the results on a per-folder
basis using a colored list box of sub-directories.
Also, the data is shown as a color pie chart.
You may want to check out more software, such as GiliSoft Full Disk Encryption, which might be similar to FullDisk.