WinDirStat is a disk usage statistics viewer and cleanup tool for various versions of Microsoft Windows. Note: if you are looking for an alternative for Linux, you are looking for KDirStat (apt-get install kdirstat or apt-get install k4dirstat on Debian-derivatives) or QDirStat and for MacOS X it would be Disk Inventory X or GrandPerspective. Please visit the WinDirStat blog for more up-to-date in