WinDirStat is a disk usage statistics viewer and cleanup tool for Microsoft Windows.
Download
* Download WinDirStat from its download site, e.g. windirstat1_1_2_setup.exe
Install
* Double click to launch installer.
* Accept EUA and click Next.
* Accepts defaults on Choose Components dialog.
* Enter destination folder, e.g. C:\prog\WinDirStat
* Click Install
* Click Next and Close