Auslogics Disk Defrag Pro 11.0.0.2 / Ultimate 4.12.0.4 May 2026

This critical feature allows the software to defragment locked system files (such as the MFT or paging files) before Windows fully launches, ensuring a more thorough optimization than standard tools.

In 2019, Auslogics updated its lineup so that older keys could be used on the Ultimate version, but keys for the new Pro edition are not interchangeable with Ultimate . Pro Edition (v11.x) Ultimate Edition (v4.x) Target User Home / Power User IT Pros / Businesses Algorithms Advanced standard 4 Intelligent Algorithms Boot-time Defrag Reporting Detailed stats Professional reports/Wizard AusLogics Disk Defrag Pro 11.0.0.2 / Ultimate 4.12.0.4

The software merges scattered bits of empty space into large contiguous blocks, which helps prevent the fragmentation of newly created files. Community Perspectives User Experiences & Reliability This critical feature allows the software to defragment

“The Pro Version is [not as fast] as the free version... and Malwarebytes still finds some malware [in some distributions].” Reddit · r/antivirus · 5 years ago Pro vs. Ultimate: Which to Choose? AusLogics Disk Defrag Pro 11.0.0.2 / Ultimate 4.12.0.4

For those managing or specific high-performance workstations, Auslogics Disk Defrag Ultimate provides the most granular control over data placement. Standard users seeking a boost in startup times may find Auslogics Disk Defrag Pro sufficient for regular maintenance.

Some users have reported more critical feedback regarding its impact on hardware and the inclusion of additional software.

Are you looking to optimize a traditional or a solid-state drive (SSD)? Auslogics Disk Defrag Ultimate Reviews 2026 - G2