Lesson 1/9 SpaceSniffer and TreeSize: finding the files that eat your disk

SpaceSniffer and TreeSize are two complementary tools for seeing where your disk space has gone on Windows. SpaceSniffer stands out for its treemap view, which shows you the biggest files instantly. TreeSize takes the more classic tree approach, which makes it easier to walk the hierarchy and see exactly what each folder holds. Using both together, you find the problem files quickly and can decide what is actually worth cleaning up.