1)   SizeExplorer Pro 4.1
Powerful disk space usage analyzer with folder size, charts, statistics, duplicates finder, clickable reports, complete file listing, exports, printing, search, file management, loading and saving of explorations (snapshots) and compare of snapshot.

 2)   Folder Size - Check directory size 1.5
Folder Size is a program that will help you find out about the distribution of the disk space on your computer. And also, it will help you find huge files you do not even remember about.