Why? Expanding that listed its subfolders, again in order of space consumed, and it turned out that the Steam folder was the main culprit, being responsible for 40.3% of that consumption all on its own.Īnd if that's not enough, clicking the 'Top 1000 Largest Files' tab does precisely what its name suggests, displaying all your most space-hogging files in a single list. We saw that, for instance, our 'Program Files (x86)' folder was using 14.3%. The report itself opens with a tree view, which displays the folders using the most drive space. But rather than crawling manually through every folder, WizTree just accesses the drive's MFT (Master File Table, the NTFS index of everything the drive contains), and that means it's able to display a report in seconds (2.43 on our test PC). Getting started here, for instance, works just like many similar applications, in that you'll choose the drive you'd like to check, before clicking 'Scan'.

If that sounds a familiar idea, then it should - there are lots of programs doing the same thing - but WizTree still manages to add a new ingredient: speed.

WizTree is a tool which aims to help you find which files and folders are grabbing the most disk space.

Download wiztree 4.13