NEW! O&O Defrag 20 – Brand new in every way!

With Microsoft having released Windows 10, it’s easy to forget one snag that not even version 10 has fixed: if you’re using traditional hard disks, they will slow down. It may take a while, you may not have a dramatic crash, but it will happen for sure. But not to worry…

The all-new version of O&O Defrag is here – O&O Defrag 20 Pro! With the new era of Windows, we have brought O&O Defrag 20 into the new era too with the very newest technology to speed up and extend the lifespan of modern disks and PC setups!

Increase performance, decrease costs!


Don’t let a slow computer spoil your work or fun! Whenever it saves data, Windows scatters file fragments all over the hard disk and this slows down access times considerably. When you defragment, the files that Windows splits up when saving documents across the hard disk are logically put back together again so that files can be quickly recognized and found by the read and write heads inside your hardware. Speed increases of up to 100% are not uncommon, and your hardware suffers much less wear and tear. Let O&O Defrag 20 Pro optimize your hard disks and you will get more speed while saving money on your hardware.

NEW: O&O DiskStat

O&O DiskStat provides you with an overall view of just how your hard disk is being used. It lets you track down those files and folders that are taking up too much space on your hard disk, and causing your computer to slow down. You can sort by category, file type, view them in Explorer and export them as a table. A further major function to speed up your systems.

New Design

For version 20 we have gifted O&O Defrag a brand new design to recognize 20 years of maximum performance for our customers.

Brand new user interface

We have revamped the entire GUI structure to make using O&O Defrag even easier and quicker for you.

Improved optimization of SSDs

File systems on SSDs fragment heavily. As well as regular TRIM optimizations, O&O Defrag 20 also improves the structure of the SSD file systems by optimizing the most fragmented files to increase performance and life expectancy.

Don’t miss out on the many new functions in O&O Defrag 20 Pro! Grab your copy now in our Online Shop, or alternatively test it for 30 days now on your current Windows system – free of charge and obligation. As well as the new functions, the old and trusted features for speeding up your PC and extending the lifespan of your hardware are all there too.

Here’s what some happy customers are saying about O&O Defrag:

We have been using O&O Defrag now for many years and are very satisfied, not just with the software but also the support we receive.”
Ralf Linka, Horváth & Partners

Only O&O Defrag Server is able to defrag these enormous, sometimes 400 GB files. All other products we tried simply couldn‘t do it.”
Scott Brown, SMI.

Jim Harrison has a very broad sales and account management background, having previously been employed by various international companies in both senior sales and customer service roles. He joined O&O Software in March, 2006 in a sales and localization capacity, and having quickly recognized the potential for O&O Software worldwide, he was appointed Director of Sales International in 2008. Jim and his team focus on developing long-term, strategic partnerships in order to bring the O&O brand and product range to more and more international markets. Developing primarily the European, North American and Asian markets, his aim is quite clear: to have an O&O product installed on every computer, worldwide!