Vopt 9.21 for Windows 10, 9, 8, 7, Vista, XP, and Servers 2003 - 2012
32 bit and 64 bit compatible
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Try before you buy!
PC World "A top-flight defragging program, Vopt is compatible with Vista and defrags system Restore Points. The program also has some nice exras, including tools to delete temp files and a slick feature that closes unnecessary apps, including Services." --Steve Bass
SOFTOOGLE "A compact, fast, and easy-to-set-up defragmenter capable of working on a schedule. It erases the various junk files (such as temp files); changes the size of the swap file and cache; displays system processes, resources etc."
"...ugly web site." --various sources