I came across this very interesting piece of software recently called Tune Up Utilities 2008.

It is a computer tweaking application that can help you improve almost any aspect of your system. The software comes with One-Click optimization software that I feel is really its core. Just by running it, you clean up your registry, delete temporary files and even eliminate junk data. Apart from that it includes a powerful disk defragmenter, permanent file shredding, file recovery, system optimization and can even help you tweak all aspects of your Windows UI, including the boot and logon screens It is shareware and a free trial can be downloaded. The software costs $49.95 at the time of writing, but I’m sure that after using the trial, you will find that it is well worth the cost.