Defrag with JkDefrag

I had a server with only 5% free on the C: drive that was massively fragmented. Unfortunately Windows built-in defragmentation program needs at least 15% free space. JkDefrag didn't care how much space I had left and did a great job of defragmenting it.

JkDefrag is 100% FREE which is the part I love best. There's also NO install. The download is a ZIP file that contains the main application, a command-line version, a screensaver version and the entire main web page as a Help. Download version include 32 bit and 64 bit. Works with Windows 2000/2003/XP/Vista/2008. You can even download the source code if you like which is in Microsoft Visual C++ 2005.

There 3 ways to use JkDefrag right out of the box.

JkDefrag.exe

Windows version. This is what most people will use. No installation or configuration necessary, it's ready to run and will automatically process all the mounted, writable, fixed volumes on your computer

JkDefragCmd.exe

Commandline version. Specially designed to be run automatically in the background, or from administrator scripts. See the "Commandline" chapter below for a list of commandline options, and the "Frequently Asked Questions" on how to run it automatically with the Windows Scheduler.

JkDefragScreenSaver.scr + JkDefragScreenSaver.exe

Screen saver version. Move (or copy) these two files to the "windows" folder on your harddisk (usually "c:\Windows\" or "c:\Winnt\"). It will automatically become visible in the list of screen savers as "JkDefrag screensaver" and can be used just like any other screensaver (right-click somewhere on your desktop and select Properties/Personalize, then select the Screen Saver tab).

JkDefrag is extremely customizable and the web site and help file breaks the whole thing down.

I've created shortcuts with specific commands in each. One just analyzes a drive, one will defragment and optimize and another just optimizes by sorting all files by name (folder + filename).

JkDefrag is gentle enough to use on a daily (or nightly) basis for keeping some of the more used computers in my arsenal in tip-top shape.

This software has a growing following and there is plenty of 3rd party versions to help make JkDefrag one of the favorite defragmenting programs out there.