MeinPlatz

MeinPlatz is a free tool that can analyze your hard disks and folders for free space, or uselessly occupied space.

Once you chose which disk you want to analyse, the program will show you a list of all the folders with the space they each occupy (normally 'My Documents' and 'Program Files' will occupy most of the hard disk). All you have to do is right click on one of them to repeat the process, this time focusing on a folder.

This way you can see where the greatest concentration of occupied space is on your computer, and where you have free space.

MeinPlatz is a very intuitive application, by which you can explore the annals of your computer in a matter of seconds.