Defragmentation

• What is defragmentation software?

  • Puts all the related data back together in HDD
  • Increases read/write speeds as read/write head does not have to move as much
• how does it work?

  1. Files stored in available spaces on HDD
  2. As they are moved, deleted or change size, small gaps appear on disk
  3. When writing new files to disk, OS splits them into smaller blocks to fill gaps
  4. Defeagmentation software puts fragmented files back together. Also groups free space to prevent further fragmentation