
O&O Defrag
A newer edition is available
Analyze and optimize HDDs and SSDs and manage Windows maintenance tasks.
Learn more about O&O Defrag

Maximum Performance for Your PC - Keep Your System Running Smoothly
O&O Defrag 27 combines drive optimization with Intensive Optimize, which runs in a dedicated Windows environment. This approach gives the optimizer access to system files and files locked during normal operation.
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O&O Defrag 27 combines drive optimization with Intensive Optimize, which runs in a dedicated Windows environment. This approach gives the optimizer access to system files and files locked during normal operation.
As time passes, your PC naturally slows down due to file fragmentation. Think of your hard drive or SSD as a shoebox filled with notes (files). Windows scatters new notes, and when you need a file, it must piece together the "file snippets", causing delays and reduced performance.
O&O Defrag 27 organizes this "shoebox" by consolidating file snippets and writing them sequentially to the drive. It also reorganizes files to minimize access times, saving you time and safeguarding your data. Regular use boosts access speed and overall Windows system performance. Plus, O&O Defrag 27 can run seamlessly in the background, eliminating worries about "file snippets".
O&O Defrag 27 is designed for simplicity, ensuring a fast computer for everyone. The modern view eliminates complicated settings, and there’s no need for difficult decisions. O&O Defrag 27 handles everything automatically. Choose whether to initiate manual defragmentation or let O&O Defrag 27 handle it all automatically.
Tailor O&O Defrag 27 to your preferences with the option to choose your defragmentation strategy. In the classic view, access professional settings, or switch to the modern view for simplicity. The choice is yours.
O&O Defrag 27 scans your hard drive or SSD for inconsistencies and checks memory and Windows system files for errors. After the check, it highlights errors and offers direct correction using the repair function.
Don’t let unnecessary files clutter your PC. O&O Defrag’s improved DiskCleaner helps you eliminate unneeded files, freeing up valuable storage space and speeding up backups.
Identify and uninstall unused programs easily with O&O Defrag 27. Increase security, save disk space (critical for SSDs), and ensure your system is clutter-free.
Optimize your data volumes in the background without affecting your computer’s performance. Configure O&O Defrag to start automatically based on fragmentation levels, specific days of the week, or when your screen saver is active.
Unlock the full potential of your PC with O&O Defrag 27. Experience unparalleled speed and efficiency effortlessly!
Editorial rating by Find Your Software: 4.8 out of 5

A newer edition is available
Analyze and optimize HDDs and SSDs and manage Windows maintenance tasks.
Learn more about O&O Defrag