O&O Defrag Free Edition (32-bit) for Windows

Name: O&O Defrag Free Edition (32-bit)
Rating: 3.6 (9 reviews)
Author: O&O Software

Used O&O Defrag Free Edition (32-bit) for Windows?

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Editors’ Review

Download.com staffFebruary 26, 2026

This tool defragments hard disks, merging fragments and organizing data into zones for faster file access and improved system performance.

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Paid

Pros
- Merges individual file fragments.
- Sorts data into performance-critical and non-critical zones.
- Separates system and program files for faster access.
- Reduces system and program start times.
- Avoids fragmentation of program files.
Cons
- Free Edition may have feature limitations.
- Requires user understanding of drive zoning.
- Performance gains depend on fragmentation level.
- Potential for longer initial defragmentation times.

O&O Defrag Free Edition (32-bit) for Windows

Used O&O Defrag Free Edition (32-bit) for Windows?

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Full Specifications

GENERAL

Release: July 6, 2011

Latest update: February 26, 2026

Version: 14.5.543

OPERATING SYSTEMS

Platform: Windows

Operating System

Windows 7
Windows Vista
Windows 10
Windows XP

Additional Requirements: None

POPULARITY

Total Downloads: 43,768

Downloads Last Week: 0

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Last Updated

User Reviews

3.6/5

9 User Votes

intermediate level defragmantation
sirinakdenizMarch 10, 2012
Pros
visually more informative than windows' native tool. probably better defragmantation too. continuous optimization with limited functionality possible.
Cons
less functional than paid version
Summary
preferable to windows' native tool.
Can't get the update to download
kasteritaFebruary 12, 2011
Pros
update won't download
Cons
update won't download
Summary
update won't download
O&O Defrag (32-bit) 14.1.431 performs tremendously!
MartinJDFebruary 8, 2011
Pros
I was using a system loaded beyond reason (which means there were too many things installed). The FREE release truly improved system performance!
Cons
I need to manage full-product acquisition (for evaluation, of course) -- but thats business.
Summary
From what I have seen, this product does what OTHERS claim to do.
Didn't like
DClarkJanuary 27, 2011
Pros
Don't have any
Cons
Too many options, too complicated Appallingly slow on my XP system
Summary
Uninstalled it. Much prefer Smart Defrag and other options
Impressive enough for me ;)
KurulhJanuary 24, 2011
Pros
Free! Sorting files into seperate zones sped up my Windows' boot time.
Cons
SSD optimization in Pro version only.
Summary
I'm using O&O Defrag for some years now but didn't equip all my PCs with the Pro version due to the costs. The Free is perfect for my netbook or the children's PCs. Other freeware may have some additional features but I'd rather stick to a brand I know and trust.
I wasn't impressed
f01m01k50January 23, 2011
Pros
Simple to use
Cons
Did not optimize for long term use as other programs do
Summary
While I am sure this is a good program, for me, it doesn't stand up to what other programs such as SmartDefrag offer for free as well.

Developer’s Description

By O&O Software

Defragment your hard disks and optimize your computer's performance.

Fragmentation can cause your computer to slow down drastically. When saving data, the operating system scatters it all over the hard disk and this slows down the time needed for accessing files. To make sure you have the fastest access times possible, keep the data on your disks arranged in perfect order.Defragmenting with O&O Defrag Free Edition merges the individual fragments from files and then sorts all data into separate zones. Sorting drives into zones results in a logical separation of the database into performance- critical and non-critical files. Depending on their designated use and access frequency, files are divided and moved into zones. System and program files that have to be accessed quickly, for example, will be separated from data such as documents and downloads. Thanks to this logical organization of files, system and program starts require less time, successive defragmentation is done significantly faster, and the fragmentation of program files is completely avoided.

O&O Defrag Free Edition (32-bit) for Windows

Editors’ Review

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MyPCCleanPro

Pros

Cons

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User Reviews

intermediate level defragmantation

Can't get the update to download

O&#38;O Defrag (32-bit) 14.1.431 performs tremendously!

Didn't like

Impressive enough for me ;)

I wasn't impressed

Developer’s Description

O&O Defrag (32-bit) 14.1.431 performs tremendously!