Fully supports Windows 11, 10, 8.1, 8, 7, Vista, and XP. Comparison: Free vs. PRO Free Version PRO Version Basic Defragmentation Auto Defrag Yes (Works during idle time) Boot Time Defrag Enhanced (Optimizes registry/system files) File Access Speed Up to 200% Faster Auto Update
The current version includes several enhancements over older releases: Download iobit smart defrag 197 zip
Improved multi-threading for faster data access and outstanding disk performance. Fully supports Windows 11, 10, 8