list all files, by size, larger than a specified size?

[tr888]

I am running out of space on my system drive (120GB SSD with < 6GB remaining). It happened in only 12 months. I'd like to know where all that space went, which files are using it. So I'm looking for a way to rank files by size regardless of their folder location, largest-to-smallest, ideally without a full scan of the disk if there are internal indexes that have this info.
Thanks

P.S. Sometimes Windows seems confused. Microsoft Money Sunset edition is taking up 23TB, for example.

 

[Cyberwolf]

This application should help you find what programs are using the most space.

ShowSize Disk Space Analyzer - CNET Download.com

Scan your main drive root directory and you can then open up all the sub directories and it will list how much space each sub is using.

 

[Ztruker]

A couple others are Treesize Free and WinDirStat.