Thanks. But I know this. But I have been using 2-3 defragmentation softwares earlier (window's own S.ware, iobit and tried some others too). But if I run 2 different defragmentators, they show different analysis.
But anyways, thanks for the help.
Why do you need two different tools to monitor a HDD for defragmentation? Different tools have different algorithms to track and depict frag levels...the fragmentation you see is a logical representation of your HDD total filespace vacant and resident space, its not physical, tools would differ in that too, even disk accessing algorithms and methods are different too...liike C-SCAN, F-SCAN, SVF etc...
.stick to any one of them and use it as your purpose serves. Remember evevery defrag operation will imply a certain wear and tear to your HDD platters, different defraggers will also do these differently, so why put that poor thing in a tug-o-war! There is nothing called an over-defrag and no one faced HDD crash from it as i know of..still..treat him with care