Disk Defragmenter is a utility in Microsoft Windows designed to increase access speed by rearranging files stored on a disk to occupy contiguos storage locations, a technique called defragmentation . Defragmenting a disk minimizes head travel, which reduces the time it takes to read files from and write files to the disk. Disk Defragmenter also reduces system startup times. As of Windows 10, the program has been renamed to Defragment and Optimize Drives In this post learn how to defragment your disk. STEP 1: Go to control Panel and select System and Security. STEP 2: Under Administrative tools select "Defragment and optimize your drives" STEP 3: Select your drive and click optimize. ...