You know the problem: The hard disk is almost full, and you don't know, where the big files actually are lying, which occupy all the space. They may well be hidden in sub-sub-directories. To find out this by means of the Windows Explorer, is tiring: you would have to expand and collapse directories over and over or view the "Properties" of the directories, which always count just the size of a single subtree. It's hard to form a mental image of the hard disk usage in this way. This is where WinDirStat helps.

用了5：18S统计出了我的Dir信息：

看下面的图片，目录和图形对应的不错吧。

WinDirStat是一个磁盘使用情况查看器和清除工具。它是基于GNU协议的开源软件。
    下载感受一下吧：For Windows NT, 2000, XP, 2003: WinDirStat 1.1.1 Executables (Unicode) (640 KB)
                                      信息来源dudu