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For about as long as there’s been a Windows, developers have been targeting the disk defragmentation utility for improvement. JkDefrag is a free, open-source defragmentation utility; JkDefrag GUI is a graphical user interface version that makes the powerful tool as easy to use as the built-in Windows feature and its many competitors.
JkDefrag GUI opens with a compact properties dialog that serves as a primary control interface. We selected what Actions we wanted JkDefrag to perform and which of our drives to check from drop-down menus and started the program. A compact view opened, displaying the program’s progress in a color-coded bit map and counters. Clicking the program’s system tray icon called up a menu with basic controls, a key to the display’s color coding, and a menu for selecting what you want it to do when it’s finished with the current job. The defragmentation process didn’t seem to take significantly more or less time than other tools, though the program has some nice features, such as moving directories to the front of the disk and reclaiming MTF reserved space when the disk is full. JkDefrag is optimized for daily use and can be run automatically at startup or other times, and it can be used as a screensaver, too. It’s as robust and reliable as any defrag tool based on the Microsoft API, which is pretty much all of the competition, so it won’t delete the wrong files or otherwise mess up your disks. The tabbed JkDefrag interface is easy to manage, despite its many options.
JkDefrag GUI is a powerful, flexible defragmentation option that is accessible and as easy to use as other Windows disk defraggers. Since it’s open-source freeware that is supported by a community of users (including a forum), it’s always evolving and keeping pace with real-world issues.