Ahh.., defragmentation. I hate this chore but I bear with it since it keeps my hard disk neat and organized. And from what I hear it’s one of the most neglected maintenance processes that PC users forget. It’s one of the Tools option when you go to the properties of Windows (C:). What defrag does is to lessen the amount of fragmentation in file systems. It’s like a librarian who detects which book is not in its proper shelf, gets this particular book and place it back to its proper place with all the other books of its kind.