WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
AutoHotkey - The ultimate automation scripting language for Windows.
TreeSize - TreeSize tells you where precious disk space has gone to.
Pulover’s Macro Creator - Pulover’s Macro Creator is a Free Automation Tool and Script Generator.
SpaceSniffer - SpaceSniffer is a freeWare (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks.
AutoKey - A Python 3 port of AutoKey, the desktop automation utility for Linux and X11.