When you frequently install & uninstall windows applications, you may end up with many empty folders on your disk if the uninstallers does not clean up properly. To quickly scan and remove empty folders from hard disk you can use the freeware Empty Folder Remover.
This light weight application scans for empty folders on any specified drive or directory and with a single click you can remove all the empty folders. The application works on Windows XP, Vista and Windows 7.