Background scans won't monopolize your disk.

Explorer will automatically update the folder size column in real-time.

Large folders will continue to scan in the background while you browse your folders. As soon as you display the app column, you'll see sizes immediately.

No scanning phase before you can start.

Not just for disk cleanup, but for any time you need to choose a folder.

It's always there when you're viewing your folders (even in Open and Save file dialog boxes, you can change the view), and it's a great visual cue to help you find the one you're looking for. Don't switch to another program to see folder sizes.Once you get used to having that information available, a directory listing simply looks incomplete without it! Folder Size for Windows may be distributed under the terms of the GNU General Public License. It's very useful for cleaning up your disk. It keeps track of which folders you view, and scans them in the background so you can see the complete size of all files within the folder. The new column shows not only the size of files but also the size of folders. Folder Size for Windows 64-bit adds a new column to the Details view in Windows Explorer.

Folder size program