I have decided to try JKDefrag, GUI-version. Did I have to download both like this?: or should I have downloaded only the GUI-version? I use Win XP Home. Have C-partition (Windows and applications), D-partiton personal data, music, documents, videos..... I dont want defrag to run automatic, I think I will use it only once every month. Based on this information what would be the best settings to use?: I also should mention that I use BING (Terabyte utility) for disc images of my OS-partition, so maybe it would be an idea to keep all data at the beginning of the partition? Any point using the Advanced Settings like Include, Exclude, Spacehogs, Logfile?