Erase unused disk space my bums! :@



When I tried to erase "unused" disk space, it erased ALL of my files on the disk. It erased even windows and all other programs which resulted in a complete format of my C drive. I have a very good system, XP pro but I dont think my system is the problem. How the hell could this happen? I dont want eraser to erase the files located on my C drive. I just want it to erase all shit not located on C: UNUSED DISK SPACE.

How could this happen?
Btw, I have a 150 GB samsung HD. It says that I have used over 20 GB, but all files together are only 3 GB??!? how can this be? I already tried chdsk, but cant find any problems? How can i fix this? :(