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UltraDefrag is a simple, free, multilingual and a very fast program to defragment your disk drives. It can handle all the system files, including the registry and swap files. Works fast, very efficient and reliably. The program allows you to visualize, with a map of clusters, showing the defragmentation process in real time. Besides is separately shows the names of fragmented files. Recommended both for novice and advanced users. The program has a console mode, which allows you to run the program on schedule. The only drawback of the program is that there are no GUI settings.