MTreeSize scans recursively and finds out folder sizes. If you are regularly going out of free space this little app may help you find folders with large sizes.

Features:
- Folder tree, sorted by size. Folders with red icon have been excluded from scanning. - File list, sorted by size. You can delete the files, supports multiple selection.
- Screen showing drive sizes and used/free space.
- You can exclude some folders from scanning, Windows alone has about 3000 files and takes forever to scan.



For more info please check the developer web site