where on earth do you find defragment on computer?

where on earth do you find defragment on computer?

Start > programmes > trimmings > system tools > defrag
start - programmes - accessories - system tools!!!
click start click adjectives programmes click systems tools,it is there
Click Start, All programs, Accesories, System Tools consequently Disk Defragmenter.
click on your start icon, Bring up adjectives programs, than click on accessories, than click on system tools within the sub menu there you will find disk verbs & defragment
Start >>> programmes >>> accessories >>> system tools >>> defrag