A person should use disk defrag weekly to keep computer from slowing down but you only have to do it when it does slow down.
Disk Defragmentation
reorganizing the disk Defragmentation actually reorganizes the disk.
Defragmentation is the process of rewriting non-contiguous parts of a file to contiguous sectors on a disk for the purpose of increasing data access and retrieval speeds. Because FAT and NTFS disks can deteriorate and become badly fragmented over time, defragmentation is vital for optimal system performance.
Disk Defragmentation
What is applications all found in windows XP
Disk defragmentation organizes fragmented files on a disk so that they are stored in contiguous blocks, reducing the time it takes for the drive to locate and retrieve the data. This leads to faster access speeds because the system can read the data more efficiently without having to search multiple locations on the disk.
Disk defragmentation.
Disk Derangement is a tool that rearranges the data on your hard disk and reunites fragmented files so your computer can run more efficiently.
Go to the All Programs in the My computer section or toolbar then click on Accessories then System Tools then click on Disk Defragmenter. THis program is in every computer like Windows and Mac. This program will shrink files for more file capacity and remove fragmented files.
They are tools to re-arrange the space in a hard disk trough time all files in the hard disk need to be arranged so the hard disk can have more life and your computer will operate smoother.
Yes, you can cancel the defragmentation process before it is complete. It is probably a good idea to re-run the defragmentation at some point in the future, but failure to do so will not harm your computer.
Defragmentation utility is one of Windows utilities designed just for that.