Proven by NSTL to be 300-500% faster and much more thorough than manual, built-in defragmenters like the one in Windows 2000. NEW! Diskeeper 6.0 Second Edition features a Microsoft recommended lightning fast boot-time defrag for critical MFT and Paging Files. Built-in defragmenters can’t touch them Tested by NSTL to increase and maintain system performance 56%-81%, even more on Window 2000. Evaluated by IDC to extend the productive life of servers and workstations by up to two years. Dramatically reduce Help Desk calls and lowers overall network budget—without effort. Completely automatic and transparent, runs while system is up and running without affecting productivity. Diskeeper is the best selling and most recommended automatic disk defragmenter ever built.