There's a fork of windirstat here: https://github.com/ariccio/altWinDirStat https://github.com/ariccio/altWinDirStat It's had most of the functionality ripped

There's a fork of windirstat here: https://github.com/ariccio/altWinDirStat https://github.com/ariccio/altWinDirStat It's had most of the functionality ripped out, but it's been optimised to run blazingly fast.