What is Disk Defragmenter and Should I use It?
First – what is file fragmentation? Sometimes when you install a program or create a data file, the file ends up chopped up into chunks and stored in multiple locations on the disk. This is called fragmentation. What makes this happen? When you first install your operating system and programs on your hard disk, they are written to the disk, for the most part, in one contiguous block without any gaps. The exceptions are certain system files that must be stored in specific locations. Over time, as you create and then delete documents or uninstall programs, once-filled locations are left empty and you end up with files dotted all over the disk. Now, when Windows is writing a file to the disk, it looks for a suitable piece of free space in which to store it. What happens, then, when you copy a 40M database or audio file to the disk and the biggest slice of free space is only 30M? Or say you modify an existing file, appending a whole bunch of data so the file now takes up more space on the
