Forgoing the "tech-talk," CA explains how PC Pitstop Optimize perform four main functions: it is to remove "junk" files to free up disk space, adjusts Internet settings for better performance, remove invalid registry keys, and set some registry settings which can improve the overall performance also shows how PC Pitstop Optimize can revitalize system performance, regain hard drive space, rev internet connection, and repair registry errors CA will include complete PC Pitstop Optimize, valued at $ 30.00, free with this book (no renewal required) Note: CD-ROM/DVD and other additional materials not included as part of eBook file.