Got An Old PC Running Slow? Make It Run Like New Again With O&O Defrag!

Fact: 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…

O&O Defrag 21 will make your PC run like brand new again! Whenever it saves data, your Windows operating system scatters file fragments all over the hard disk and this slows down access times considerably. O&O Defrag puts the individual fragments back together again so that files are then positioned consecutively on the hard disk. The result is faster system starts and accelerated programs.

Increase performance, decrease costs!


PCs get slower in the course of their use. Two of the main reasons are the fragmentation of files and the storage of superfluous files. O&O Defrag 21 addresses these problems and ensures a significant speed increase and more comfortable work on the PC. A life expectancy for a PC of three to five years is no longer a rarity, especially since by Windows 10 many older PCs with a modern operating system can be used even longer. However, this also results in a significant loss of performance in the long run, since the continuous storage and deletion of files dramatically increases the fragmentation, resulting in noticeably longer access times during loading. The same applies to the temporary files created by many applications, which slow but surely “fill” the system and thus also reduce the speed during the daily work on the PC. Let O&O Defrag 21 Pro optimize your hard disks and SSDs, and you will get more speed while saving money on your hardware.

The integrated O&O DiskStat 3

For this purpose, the defragmentation algorithms have been improved with a view to saving the system resources and a better strategy when placing the files for even faster file access. In addition, O&O DiskStat is available free of charge for O&O Defrag users as a standalone application for finding and removing large and unnecessary files, in order to be able to clean up with a few clicks in case of storage shortage.

Optimized Disk Cleaning

As requested by many customers, the O&O DiskCleaner function has been optimized once again in O&O Defrag and now allows for the automatic deletion of superfluous files in combination with a subsequent defragmentation for the maximum gain in performance.

Don’t miss out on the many new functions in O&O Defrag 21 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!