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Microsoft defrag or disk defragmenter is a software utility designed to reorganize the files in chronological order on a disk to optimize disk performance. It places each program together at one place in the hard disk instead of scattered fragments, which allows the read-write head to access the data faster on the hard disk drive. Windows 98 has an improved version of defrag that places the most commonly accessed data at the beginning of the drive allowing the read-write head a shorter distance to access the data thereby making the computer perform faster.
Syntax
DEFRAG [ drive: ] [ /F ] [ /U ] [ /B ] [ /SKIPHIGH ] [ /LCD | /BW | /G0 ] [ /H ]
Frequently Used Switches
/F Defragments files and ensures that the disk contains no empty spaces between files.
/U - Used to defragment files, leaving empty spaces between files.
