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O&O Defrag ensures maximum drive performance at all times

Intelligent optimization technology adapts to the type of drive and keeps systems reliably fast, whether in daily office operations or under heavy load. With comprehensive automation functions, detailed analyses and proven optimization methods, O&O Defrag offers full control and measurable performance benefits – for individual workstations as well as for professional IT environments.

Automatic Drive Optimization

  • Fully automatic defragmentation of classic hard drives (HDD)
  • SSD-optimized procedures without unnecessary write access
  • Automatic detection of drive type (HDD / SSD)
  • Separate optimization of system and data drives
  • Long-term performance maintenance without manual intervention

Powerful defragmentation methods

  • Multiple optimization strategies for different requirements
  • Contiguous storage of fragmented files
  • Consolidation of free storage areas
  • Reducing future fragmentation
  • Optimization of folder and directory structures
  • Improved access times to frequently used files

Automation & Background Operation

  • Fully automatic background operation
  • Start of optimization when the system is idle
  • Time-controlled optimizations according to schedule
  • Event-based execution on inactivity
  • Automatically pause on user activity
  • Individual time windows per drive

Offline & Boot-Time Optimization

  • Optimization of locked system files before Windows starts
  • Processing files that are not accessible during operation
  • Scheduled offline optimization with automatic restart
  • Particularly effective in highly fragmented systems

Resource and system conservation

  • Low-priority defragmentation
  • Intelligent control of CPU and I/O load
  • No impact on running applications
  • Optimization only with sufficient system resources
  • Optional deactivation on battery power

Analysis & Transparency

  • Detailed analysis of the fragmentation state
  • Clear display of all drives
  • Display of last and next optimization operations
  • Logging of all optimization jobs
  • Traceable history of all measures

User-friendly operation

  • Single interface for all drives
  • One-click optimization with recommended settings
  • Automatic mode for maximum simplicity
  • Advanced Expert Options for Power Users
  • Clear status indicators and understandable feedback

Drive & File System Support

  • Optimizing NTFS Volumes
  • Internal and external drive support
  • Suitable for large disks and many files
  • Optimal management of large file structures
  • Security & Stability
  • Gentle optimisation processes
  • File System Integrity Protection
  • Clean cancel on restart or shutdown
  • Continuation of interrupted optimizations
  • Stable continuous operation on productive systems

Optimization for different application scenarios

  • Ideal for office and workstation computers
  • Optimizes workstations with large project files
  • Suitable for systems with SSD and HDD combinations
  • Long-term performance stability for archive and data drives