Selecting the Computer tab in the main FolderSizes window will show a graphical view of your computer's storage system(s). By default, this drive listing will include fixed, CD-ROM, remote (network), and RAM drives.
You can configure which drives appear here through the Drive Space section of the Options window.
The Computer View exposes several useful features:
•Click any drive to begin analyzing it immediately
•Click the Analyze All Drives link to begin scanning all listed drives
•Click the Configure View link to specify which drives appear in this view
•Click the Export As link to export high-level drive space summary information in a variety of formats
•Click the Map Network Drive link to show the Windows drive mapping window
•Click the "history" link next to the Growth percentage indicator to view Disk History
You an also hover your mouse over a drive to view a range of useful details.