UltimateDefrag 6

Paid#6 of 20 in Disk Defragmentation Software

UltimateDefrag 6: A focused Windows optimizer for FAT32, NTFS, HDD, and SSD maintenance. Ranked #6 of 20 in Disk Defragmentation Software by our editors (8.2/10); pricing: Paid; best for strategic FAT32 and NTFS optimization.

8.2/10Editor score

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At a glance

Editor score
8.2 / 10
Pricing
Paid
Best for
Strategic FAT32 and NTFS optimization
Free plan
No
Paid from
$29.95 one-time
Drive types
Both
Facts checked
20 Sep 2026

Where it wins
- Supports FAT32, NTFS, HDD, SSD, external, and RAID configurations
- Combines scheduling, automation, boot-time placement, and file-level jobs
- Includes simulation mode, command-line directory defragmentation, and three-PC licensing
Where it doesn't
- Windows-only software with no listed support for other platforms
- The regular license price is a $29.95 one-time purchase
- The trial operates only in simulation mode and makes no drive changes

Our verdict on UltimateDefrag 6

UltimateDefrag 6 is Windows desktop software for defragmenting and optimizing hard drives and SSDs. It is aimed at users who want more control than a basic drive-maintenance utility, particularly when working with FAT32 or NTFS volumes and strategic file placement. The software supports Windows Vista through Windows 11, Windows Server editions, external drives, and RAID configurations. Its feature set covers both routine optimization and targeted jobs, including individual file and folder defragmentation.

The published plan is straightforward: UltimateDefrag 6 costs $29.95 as a one-time purchase, and one license supports three PCs. The plan includes instant download delivery and a 30-day money-back guarantee. Scheduled defragmentation and one-click automatic defragmentation support recurring maintenance, while simulation mode provides a way to review an operation without applying drive changes. The trial is limited to simulation mode, so buyers looking to make actual changes need the paid license.

Its main distinction is the level of placement and boot-time control. Users can optimize the location of files strategically, defragment NTFS system files at boot time, and target system components such as the MFT and page file. SSD-specific defragmentation algorithms are included alongside support for traditional FAT32 and NTFS volumes. Command-line directory defragmentation adds an option for users who prefer scripted or administrative workflows. Choose UltimateDefrag 6 if you need multi-filesystem support, scheduled or automatic optimization, and detailed file-placement controls on Windows. It is less suitable for users seeking a free plan or software for non-Windows platforms.

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UltimateDefrag 6 pricing

Plans PaidPaid No free plan — trial or paid only. Prices checked 20 Sep 2026.

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UltimateDefrag 6 fact sheet

Free plan	No
Paid from	$29.95 one-time
Drive types	Both
Scheduled optimization	Yes
Automatic optimization	Yes
Boot-time optimization	Yes
Filesystem support	Multi-filesystem
Maximum drive count	Not verified
Money-back guarantee	30 days
Deployment	Desktop
Platforms	Windows
Built for	Solo, Small business (editorial estimate)
Pricing	Paid (source)
Website	disktrix.com
Facts checked	20 Sep 2026

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update