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Currently I'm using OO Defrag, perhaps the best defragmentation program there is.

I'm looking for a free/open source alternative with at least powerful defragmentation algorithms.

I looked at Defraggler but it's too simplistic. What are some powerful ones?

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62% accept rate
I've not personally used Defraggler but why do you say it's simplistic? – Ciaran Aug 31 '09 at 0:05
Because I'm using OO Defrag curently? Compared to OO Defrag in term of defragmenting algorithms Defraggler is pretty simple. – Don Salva Aug 31 '09 at 5:45
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9 Answers

up vote 3 down vote accepted

http://www.mydefrag.com/ MyDefrag (and JKDefrag before it) have always served me well, especially the screensaver option.

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+1 This new version is scriptable which should allow it to meet in your needs in any way that you need. – Chris Thompson Aug 31 '09 at 5:02
That being if I can find the necessary script or am able to write them! I'm gonna check it out! – Don Salva Aug 31 '09 at 5:47
Oh, it comes with plenty of premade ones :) – Phoshi Aug 31 '09 at 9:27
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up vote 3 down vote

The Windows-built-in one?

Especially with Vista and Windows 7 they have put a lot of thought into it. Granted, it may not be as flashy, especially because it runs on a schedule without even a GUI. But every line of code drawing pretty images for you is a line of code not devoted to the task the program should actually perform.

And I certainly just want my drive defragmented (whatever little use it may be, unless the drive is very full), and not to tinker around endlessly while watching pretty graphics that tell me how my HDD looks like (or might look like).

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Certainly not the Windows in-built ones. I'm looking for powerful ones with advanced defrag algorithms. Oh yea, and I don't use Win7 and Vista, I'm on XP SP 3. – Don Salva Aug 30 '09 at 21:11
If 'powerful' means with beautiful UI and full of empty promises of some speed improvement, then yes - built-in defragger sucks :) – Slink84 Sep 18 '09 at 10:48
Slink84: Exactly my point. It's mostly snake oil what they sell. Ah well. – Joey Sep 18 '09 at 16:46
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up vote 1 down vote

Check this from lifehacker Five Best Disk Defragmenters

I'm sure you can find one there that you like

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up vote 1 down vote

IOBit Smart Defrag is also worth having a look.

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up vote 1 down vote

Sysinternals Contig plus Power Defragmenter GUI (if you're not comfortable with the command line)... takes the defragmentation process to a whole new level.

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up vote 1 down vote

I like Defraggler (it's free). http://www.defraggler.com/

These guys also make CCleaner, I'm a fan of that app too for registry cleaning and more.

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up vote 0 down vote

OO Defrag v12, just released - i have been using it almost 10 years. I write software for a living - so, i don't mind paying for a good product.

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Defraggler is much faster than the MS integrated defrag. It works optimally if you follow it by the MS defrag and then run defraggler as second time.

if you run the MS version it takes ages and defraggler can then do a more complete defrag demonstrating that it is inherently faster and better by default. I have never had any problems with Defraggler on any platform or PC for many PCs. Why use one software when combined is better?

I personally also found defraggler superior to smart defrag and have actually used all three on some machines and had no issues at all. What is evident is that MS often indicates no fragmentation and clearly drive noise indicates otherwise as does disc access speed; all resolved by defraggler rather than the MS defrag which fails to consolidate as well.

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up vote -1 down vote

I'm a fan of Smart Defrag. It's free and works very well.

The user interface is very easy to work with.

I have it scheduled to run once a week.

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