‘Time View’ to identify defragmentation activity results of successful optimization.

Best Performance – Get even faster system performance and program start time.

O&O Defrag offers a new defragmentation method (SOLID) for HDD and SDDs.

The defragmentation process time is reduced by up to 40% in newer versions.

Inbuilt ‘Fragment Filter’ identifies the most fragmented files on Hard Drive.

Defragments locked files and displays lifetime performance statistics.

User-Friendly – Ideal interface for Beginners and Professionals users.

Supports Windows 10, Windows 8.1, 8, 7 and Windows Vista.

Optimum support on Windows 32-bit & 64-bit versions.

Please consult your firewall’s documentation for precise configuration procedures. If this did not happen, however, including the files OODAG.EXE and OODCNT.EXE on your firewall’s list of trusted programs has also proven successful with all of the firewalls we have tested. In most cases, it is enough to authorize O&O Defrag for exclusively internal communication when the software is started for the first time. Since O&O Defrag automatically checks access permissions, there can be no external access over this port even if you are connected to the internet. You don't have to turn off your firewall! Simply open up port 50300. Most firewalls, however, are programmed to recognize internal IP communication, so you receive a warning message.

This communication only runs inside your computer - without any access to the Internet or the network. The communication of the individual O&O Defrag program components (O&O Defrag Agent and user interface) is based on TCP/IP. Why does this happen and and how can I solve the problem?

Conflicts with shadow copies during defragmentationĪt the start of O&O Defrag, my firewall notifies me of an attempted access.

Why is the ClusterView different on HDDs and SSDs?.

Why do the write access counters of my SSD increase during defragmentation with Solid / Quick and Solid / Complete?.

Schedule defragmentation at regular intervals.

Differences between the various Editions.

O and o defrag