Win 10 sort folders by size and multiple delete?

[ponder]

I've got ~400GB in my Download folder which I need to cleanup before I do a Win10 reinstall and explorer is useless, any recommendations for a third party app?

Edit: Yes I could probably boot a linux live image if I have to...

 

[RedViking]

WinDirStat

 

[Sinbad]

Treesizefree

 

[ponder]

Thanks, downloaded and tried both, prefer the windirstat interface. Let the agonizing tasks of what to keep commence...

 

[binaryman]

Run Directory Report as an administrator

 

[animal531]

Bit late, but I like to use SpaceSniffer.