I need a program to see what's on my hard drive

[Greg12]

I cannot believe i have used up 15 gigabytes of my 20gb disk

I'd like a program that would scan my drive and list all the files in order of size so i can see what's taking up the space.

[jasond]

treesize..

http://www.jamsoft.net/treesize.html

you could also try a scan/defrag incase its not picking up the correct filesize..

[khelms]

Assuming this is a Windows system, you can bring up Windows Explorer, select the drive letter you want to look at, select Search, and enter * as the file name. That should come back with a list of all files on that drive. You can then click on the size column header to put the files in ascending order by size. Scroll to the bottom and you'll see the biggest files. You can also delete files from the result list, so this lets you clean up the drive quickly.