Free Windows disk optimizer
MyDefrag — formerly JKDefrag — is a free disk defragmentation and optimization utility tool for Windows operating systems, including Windows 2000, XP, Vista, 2003, 2008, and X64 editions. The software is designed to rearrange files on a disk for improved access and overall efficiency. It supports various storage devices such as hard drives, USB drives, memory sticks, and other media recognized as disks by Windows.
MyDefrag offers multiple optimization strategies, includes a command-line interface for scripting and automation, and it has a screensaver mode that runs the defragmentation process when the system is idle. Since version 4, the software has been closed-source.
MyDefrag can process large files, defragment full disks, and relocate directories to the beginning of a disk for quicker access. The software includes a command-line version that enables you to schedule operations via Windows Task Scheduler or run scripts for custom defragmentation processes. It also features a screensaver mode that initiates defragmentation when the system is inactive. The program supports all standard Windows file systems, including FAT32 and NTFS.
Enhance your system
It's compatible with Windows 2000, XP, Vista, 2003, 2008, and their X64 counterparts. The software operates with relatively low system overhead and is optimized for frequent use. It offers fast execution compared to the built-in Windows defragmentation tool, particularly due to its ability to reclaim MFT reserved space and maintain free space for temporary files. It can run directly from external storage like a USB drive or CD-ROM.
The software features a minimalistic interface that primarily relies on scripting for advanced configurations. While the graphical interface is functional, it provides fewer interactive controls compared to some modern defragmentation tools, like Defraggler. You can apply different optimization strategies through predefined scripts, and the command-line version allows integration with administrative scripts. It also offers a passive way to run defragmentation without interrupting active use.
Defrag your drive
MyDefrag is a disk defragmentation and optimization tool for older Windows systems, supporting FAT32 and NTFS file formats. It provides various optimization strategies, including directory relocation and MFT space reclamation. The software includes a command-line version for automation and a screensaver mode for passive operation. While it offers technical flexibility through scripting, its graphical interface is minimalistic, and it no longer provides open-source access.
