Most contemporary Windows operating systems will defrag your computer automatically. You can defrag your computer manually if you have Windows 7, 8, 10, or Vista. Defragmenting your computer helps ...

Defragmentation and disk optimization in Mac OS X collectively represent an issue nearly as contentious as the debate over repairing disk permissions -- one camp argues that utilties purportedly ...

Sounds neat, but I only have Leopard installed right now. I'll be keeping an eye open for iDefrag along with DiskWarrior (I wish they at least made an announcement as to when DW will be updated).