Hard drive memory issues- where is it?

I have Windows ME and a 30 GB HD. There's about 27 gigs of free space to begin with. Right now, I have very few programs installed, and about 3.5 gigs of music/videos. However, I only have 4 GBs free space. I've searched my computer, but I can't fingure out what's hogging so much HD space. I only have basic progs installed, like Word, Excel, etc. Is there any way to find out what's taking so much memory up? THANKS!

 

Try downloading and running Disk Data. It's advertized as a Win95 program but runs just fine on Win98 & WinME also.

http://www.keyscreen.com/KeyScreen(s)6/diskdata.htm

 

Thanks. I found that my Restore file is taken up about 4 gigs. However, I can't delete the files in it- Windows says they are already in use. How can I get rid of these? My system restore doesn't even work!