Advanced Disk Optimizer

From Systweak:

Advanced Disk Optimizer removes all the fragments from the hard disk by gathering all the small chunks of free space together. This helps to create a larger area of free space, which can then be used for better storage purposes. The scattered data is also brought together so it can be accessed quickly from the area where it has been stored sequentially.

Advanced Disk Optimizer solves the problem of data fragmentation, bringing a renewed level of responsiveness to your applications and reducing the time it takes for your computer to boot. With Advanced Disk Optimizer, all of the fragments of data are rearranged back to a sequential order on your hard drive, greatly improving data access times.