There are performance enhancements to be gained by defragging your disks but the
tool Windows provides is pretty useless so we recommend a freeware product called
Defraggler by Piriform which does a much better job and its faster. You can download
it by clicking here.
Windows also provides various tools to clean space on your disks that is no longer
required. The same company Piriform puts all the cleaners in one place, its called
Ccleaner and we think its a vital tool. You can download it here.