10 years of experience at the professional level is what Ashampoo has to offer in what is a very important topic for daily PC use, namely, Windows optimization. This extensive pool of knowledge is now the basis for the new and completely improved Ashampoo WinOptimizer 5. The program is designed to enable both novice and advanced users to cleanse and optimize their Windows system and adapt it to their own needs. The tool feels equally at home optimizing the Windows XP and 2000 operating systems as it does under Windows Vista.