text: disc defragmenter? help? yesterday when i defragmented the disc it stated i had 34% free space on the local disc c. today it stated i had 9% free space on the c drive, ive managed to get it up to 42% free space now but how do i get it to check the cd rom drive (e)? as when i went into 'my computer' and looked in disc drive e properties it states there was no space available, same with the dvd rom drive. how do i change the local disc (c) so (e) & (d) drives can get defragged aswell,,,,ive deleted most of the programms that i dont use and emptied the trash to see if this will help but to no avail also what is the local disc? is it the floppy? as ive never inserted a floppy disc,,,,,,would it be possisble if you can explain it in non pc gargon if you have any idea to help me it might help to explain the process of defragmenting.  when your computer is new files are saved whole and your free space is one contiguous area.  as files are saved, deleted, saved again, and so on, the free space on your hard drive becomes divided into little chunks.  when new files are saved into those chunks they must be divided and saved as several smaller pieces and then reassembled when accessed.  obviously when your computer has to grab several pieces of a file from different places and reassemble it, that is slower.  defragmenting rearranges the files on your hard drive so that they are saved whole and in one place.  it also makes your free space into a single continous area.  data on a cd or dvd is permanent, that is to say you cannot move or delete it.  therefore you cannot defragment them.  in fact you don't need to for the same reasons.