Auslogics Disk Defrag Pro 11.0.0.2 / Ultimate 4.12.0.4 Apr 2026

“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?

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 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. “The Pro Version is [not as fast] as the free version

Both versions are known for their high-speed "proprietary defragmentation technology," which can often process a standard hard drive in under 10 minutes. The software merges scattered bits of empty space

While SSDs should not be traditionally "defragmented" due to wear-and-tear concerns, Auslogics includes a special safe algorithm designed to optimize solid-state drives without damaging them.

and Ultimate (v4.12.0.4) are professional-grade Windows optimization tools designed to go beyond the basic defragmentation built into the operating system. While the Pro version focuses on advanced scheduling and performance tweaks for home users, the Ultimate edition is the most comprehensive, offering specialized algorithms for diverse PC usage styles. Key Features and Performance

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.