JkDefrag, MyDefrag, UltimateDefrag. I agree they all do the same job basically, but the paid ones are faster.
Paragon, just trying now, because of a free Paragon Harddisk Manager 10 Suite which came with a magazine I buy every now and then. Before I used the one shipped with XP which I think it is still one of the best. Gerard
I ran this JkDefrag then check the results with Defraggler (from Ccleaner folks) sure enough 0% no fragments. Not bad compared to IOBIT Smartdefrag not so good there.
Plainly, I do not trust the defragmenter built into Windows. Its estimates are strange, its math does not line up, and many files refuse to defragment no matter how much contiguous space is available on disk. The breaking point for me was just yesterday, when I saw that a 1KB file purportedly had over 300 fragments. So I checked the file distribution in Defraggler, where the report did not line up. I ran the full defrag, and when it was done even Windows' own defragmenter could not find any fragmented files. When I got home later, I used it to great effect; collating all mods for the game 'Oblivion' (25k files, 40GB) into a single run on the disk. So far, so good. Which defragmenter had the ability to perform major operations on the MFT, like resizing and such?
I abandoned UD for Puran because I needed an effective and reliable boot-time defragger ...Puran delivers the goods!
I'm not a 'fangirl' of frequent defrags as any potential benefits are not evident to me. That said, I will do a defrag (on general principals) about once a month using Puran.
ditto I also have a license for perfectdisk but I have not used it for the last 6 months. puran simple rocks.
Windows since Vista...the others are kind of old and I didn't see any benefit to those pay Defrag. apps. but to each his own.
MyDefrag is the new name for JkDefrag which is already in the list. Personally I use MyDefrag, voted for Jk.
Although there are other "defraggers" built into other utilities I count the main Windows defrag as the default.