How often you "need" to defrag depends entirely on how hard you thrash your disk, and with what programs. NTFS does fragment less often, and it deals with defragmenting better, but it still depends on ...

How often should you defrag a drive? I know you are suppose to after you move, use, change, or add a large number of files, but at what point does defragging a drive cause more wear and tear than it's ...