Here's WizTree which is similar to WinDirStat but runs much faster: http://antib...

rincebrain · on Jan 20, 2018

I would suspect it works in a similar fashion to this[1] modification of WinDirStat, which parses the MFT to do rapid scanning, but loses the ability to selectively refresh parts of the tree.

It is, however, F/OSS.

[1] - https://github.com/ariccio/altWinDirStat

cookiecaper · on Jan 19, 2018

Wow, that's way faster than WinDirStat. Thanks for the link! This is awesome.

edwinyzh · on Jan 20, 2018

It's very fast, thanks for the recommendation. It's about page says it's so fast because it reads the NTFS' MFT directly. And it's written in Delphi.

Freaky · on Jan 20, 2018

It unfortunately doesn't seem to work properly with Storage Spaces. It can account for about 2% of the used space on my 50%-full thin-provisioned D: drive.

fencepost · on Jan 20, 2018

Not sure about Storage Spaces, but for non-local files in Onedrive on Windows 10 there are two size columns in WizTree for size and space on disk. Not sure it lets you select which value is used for ordering though.

arunc · on Jan 19, 2018

Is this open source?

jpalomaki · on Jan 20, 2018

Yes, on Source forget: https://sourceforge.net/p/windirstat/code/ci/default/tree/

toyg · on Jan 20, 2018

Doesn't look like it.