I have been using this app for years and it’s still the best one out there.

WinDirStat (https://windirstat.info/) is a brilliant application that trawls through you files on a disk analysing their files types, location and size.

When it finishes analysing (which it does remarkably quickly, but may take a few minutes) you get presented with a great looking ‘TreeMap’. Select a folder or file type shown in the lists and the associated part of the map is highlighted. This gives you a very quick feel for what’s taking up all that space.

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