Hi Mistro, I'm using Ultimate Defrag too. I also choosed high performance files to be put at the outer areas of my hard drive / partition. You're also having the option to choose files being archived. Perhabs you've to select all files explicitly not being selected for high performance to archive files and create them at the inner part of your hard drive. I'm not sure if one's just selecting high performance files wether all remaining files and perhabs some selected high performance files being put automatically to archived files by percentages if checked in that tab. That's a question I asked myself a several times if all files not being selected for high performance automatically will be moved to archived files (assuming that option's checked) or if I've to choose them manually.