NEW! O&O Defrag 20.5 – Now With Full Support For High DPI Displays!

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…

Today is Defrag Day – just the right time to speed up and defragment your PC! And to release our latest O&O Defrag 20.5 Pro. The new version 20.5 of O&O Defrag Professional Edition is now available!

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 20.5 Pro optimize your hard disks and you will get more speed while saving money on your hardware.

NEW: High DPI Display support

O&O Defrag 20.5 now offers full support for High DPI displays, for example 4K Monitors. High DPI Displays are displays with increased pixel density compared to standard DPI displays. This pixel density is measured in Dots per Inch (DPI) or Pixels Per Inch (PPI), and is determined by the number of display pixels and physical size.

Optimization of SSDs

File systems on SSDs fragment heavily. As well as regular TRIM optimizing, O&O Defrag 20.5 now offers SSD Optimizer. SSD Optimizer improves the file structure of an SSD by optimizing the heaviest fragmented files when needed – avoiding unnecessary write operations – to increase performance and extend the disk lifespan.

Don’t miss out! 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!