Like TuneUp Utilities and WinOptimizer , WinUtilities is also an excellent and reliable computer tune-up program that optimize and speedup your system performance. This suite contains utilities to clean registry, temporary files on your disks, erase your application and internet browser history, cache and cookies.
You can control startup programs that load automatically with windows, find duplicate files, fix broken shortcuts and uninstall unneeded software. Other features include secure file deletion, recycle bin shredding, cleaning tasks scheduling and undelete deleted files. More details available from here.
Dottech.org offers a free download and a valid registration key for WinUtilities 6.2. If you like to get one just visit the blog and grab your free copy.