Zilla WinCleaner N' Optimizer is like having your own personal cleaning company for your Windows® computer. Like a professional cleaner, the program knows exactly what kind of dirt to look for, where to find it & how to get rid of it efficiently & without damaging anything else on your PC. Has 10 easy-to-use modules that were especially designed for that but also includes an absolutely unique feature - the One-Click-Optimization!. Optimizes your complete Windows® with only one click. If you use the default options, the functions "Drive Cleaner", "Registry Cleaner" and "Internet Cleaner" are executed automatically. (We have selected those features that do not require expert knowledge), Optimize your hard disk drives with Drive Cleaner : Gets rid of general redundant files, Get rid of unused or duplicate DLL files with DLL Cleaner, Cleans up leftover garbage in the Windows® registry with Registry Cleaner, Cleans up the temporary files and "data trail" left by Internet surfing sessions with Internet Cleaner, Faster, smoother and snappier internet surfing with Internet Tuner by Optimizing your Internet connection for faster, more efficient performance, Get full control over the programs that start automatically with Windows® with StartUp Tuner, Permantly removes files and folders so that they cannot be restored. Note: This is an advanced shredder, with multiple algorithms,so be aware before you use this feature with Data Nuker, Choose which files are associated with which program. Quick, easy and whenever you want with File Associator.With Win Tweak Manager you can control your Windows system ,It includes many powerful tweaks and hidden Registry settings. The simple user interface enables fast access to settings that affect the speed, security, efficiency, and convenience of your computer, Win Tweak Manager also includes tweaks for many known software applications,Win Tweak Manager is the best utility for modifying system settings .