From Michael Ebeling’s blog:
If you go through the same routine that I do when my Windows drives start to become full, which consists of right-clicking and viewing the properties of the folders in the root directory to find the largest ones, then navigating into those directories and repeating the process, you’ll get good use out of this little freeware program called Space Monger. It gives you a visual representation of where the space on your Windows drives is being consumed, and it allows you to easily zoom in and out of subdirectories. Best of all, no installation is required; the program consists of only one executable, so all you have to do is download it, unzip it, and run it.
Here is the program: SpaceMonger
The interface looks a little clunky, but it does the job.
