Tuesday, May 3, 2011

Disk Defragment- What is it?

Fragmentation makes your hard disk do extra work that can slow down your computer. Removable storage devices such as USB flash drives can also become fragmented. Disk Defragmenter rearranges fragmented data so your disks and drives can work more efficiently. When you delete something, the slot of memory it used is left behind. Also when creating files, the files get broken into several pieces and the pieces of a single file is scattered all over the hard drive. This is because the computer stores the data starting at the beginning of the drive and in the slot that has enough memory to hold it. If a slot has not enough space then it moves on to another slot that has enough space. Now what happens is, even to access one file the head of the hard drive has to move to several locations where the pieces of the file is stored. This makes the access time slow and your computer will not respond as quickly as expected.

When you defragment your drive, the pieces of the files are stored together so that they can be accessed quickly and the computer doesnot use up the resource trying to locate the pieces of files. The stored data are rearranged so that they are contigious instead of fragmented.

To defragment a disk in Windows:

  • Right click the drive to defragment and choose Properties
  • Under Tools tab, choose Defragment now
disk defragment

  • Click Analyse Disk and if it says to defragment then Defragment the drive
disk defragment

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