Defraggler Pro 2.15.742 Full Version – Defraggler Professional is a program to defragment your hard drive. According to the developer, Defraggler differs from other products, first of all, that can not only defrag a hard drive as a whole, but the individual files. Pick the trouble spots on your hard drive – like your favorite videos, your business software, or your Web browser. Optimized performance of Analyze and Defrag on all windows OS.