DISK DEFRAGMENTER

What the Defrag does is it creates a contiguous file structure. This means it rearranges all the files and programs so that your files are found faster and your programs start faster. Rearranging your programs is based on your usage over a period of 90 days. The system keeps a log of used programs and the frequency in which they were used. Use a program a lot and it gets moved to a position where it can load faster.