O & O Software GmbH is a German technology company headquartered in Berlin. The software developer has been selling Windows programs to private individuals and businesses in over 140 countries since 1997. The product range includes optimization programs, data recovery and data deletion software, as well as administration applications.

O&O Defrag 21 is a professional defragmentation program with an English-language interface and many useful functions. Thanks to the five varying defragmentation methods offered, the software optimizes every system and automatically finds the best possible settings. The program independently detects when data carriers need to be defragmented, substantially diminishing the users workload. The extended range of functions includes cleaning and statistics tools as well as various extras.

Registered users can fill in a support request on the website or contact the support team directly via email. With a 30-day money-back guarantee, purchasers take no risk and can return the software hassle-free.

Installation

The Tune-Up software can be purchased as a lifelong license for one or five PCs directly from the O&O Software GmbH website. Alternatively, potential users can download a free trial version. The purchasers receive O&O Defrag 21 without a subscription and for a low price, starting at around 35 dollars.   Immediately after purchasing the software, the tool can be downloaded and installed on Windows. The entire process only takes a few minutes, even for inexperienced users. After the almost fully automated installation, the program is activated with a key and can be used permanently.

Cleaning

O&O Defrag 21 has an English user interface that is clearly designed. The tool is suitable for both professionals and beginners thanks to the easy operation. Various menu items can be found in the upper area of the window and the program displays extensive details about the selected functions in the middle of the window. The Tune-Up software supports all popular hard drive types and file systems. The users can choose between the O&O Defrag function, the O&O DiskCleaner function, the O&O DiskStat function as well as the time management function and various extras. The O&O DiskCleaner offers users various cleaning functions. The software removes unnecessary and temporary files that are taking up hard drive space. In addition, O&O Defrag 21 increases the potential security of the files, making them quicker to access. In the O&O DiskStat menu, users can see comprehensive diagrams of the free and used storage space on their data carriers at the click of a button. Use this feature to selectively identify and remove unnecessary files. The practical fragment filter makes it easy to find the most fragmented data on the hard drives. Even locked files can be defragmented without limitation using this program. The free storage memory on the computer can automatically be deleted by the software. Over time, users can see which defragmentation had success. Compared to the previous versions, the defragmentation process is much faster and puts hardly any strain on the computer hardware. In addition, the software prevents too fast fragmentation.

Tune-Up

Connected data carriers can be analyzed and optimized in the first O&O Defrag menu option. The software displays all drives and suggests useful optimization measures. By clicking on the green “Start” arrow, O&O Defrag 21 starts the defragmentation. During this process, all fragments on the data carriers are rearranged so that users can benefit from higher performance. By means of an intelligent algorithm, the software organizes the connected drives into different speed zones. The data is logically divided into non-critical and performance-critical files. Optionally, the zones can be configured as desired. The improved functioning of O&O Defrag is particularly useful. This allows users to set the software to automatically search for unnecessary files and subsequently defragment the hard drive. The user can configure the automatic defragmentation with just three simple clicks. The software automatically optimizes all selected data carriers in the background of the operating system without negatively affecting the performance of the computer. The program can be set to automatically start defragmentation as soon as a certain degree of fragmentation has been reached. Users can pause the process at any time and continue at a later stage. Thanks to a quick configuration, the operation is hassle-free even for beginners. With the handy Job Wizard, users can set automated and repeat optimizations. Users who make use of O&O Defrag 21 on a regular basis will benefit from a longer service life of their hardware, significantly better performance and a greater chance of recovering lost data. In addition, regular use speeds up data backup and data recovery operations.

User-friendliness

Thanks to a low price and not having a subscription system, O&O Defrag 21 has significantly lower costs compared to other programs. Purchasing, installing and activating the Tune-Up software is smooth and quick. Purchasers benefit from a clearly structured interface. O&O Defrag 21 works on Windows operating systems from Windows 7 upwards and ensures a significant increase in performance. Use on server systems is also possible.

The website has been designed to be clear and user-friendly. In the FAQ section, users can find appropriate answers to most topics and can download manuals, whitepapers and studies from the website. In addition to a free trial version, purchasers have no financial risk as they can make use of a 30-day money-back guarantee.

Help & support

Registered users can contact the customer support team of O&O Software GmbH via an online contact form (ticket system) or directly by email. The support staff speaks English and answers all inquiries and questions promptly. Unfortunately, the specified telephone number in Berlin is not for support inquiries. Interested users will find numerous studies on the functioning and effectiveness of O&O Defrag 21 on the official website. The popular Tune-Up software has already received a number of awards from journals like Computer Bild, PC Professionell, Chip and PC World, and has been rated with “good to very good.”

Summary

With a low purchase price of 35 dollars and no subscription, O&O Defrag 21 clearly stands out from the crowd. The defragmentation and optimization program runs exclusively on Windows and can be easily operated thanks to its clear design and intuitive structure. Users can choose from different methods of defragmentation and benefit from individual recommendations as well as useful extras. All connected drives are defragmented and optimized in the background of the operating system without a noticeable performance decrease. With its regular defragmentation, O&O Defrag 21 provides more free memory space on the drives and a permanent increase in performance, while the hardware benefits from longer service life.