1)   Free System Tweaker 1.1.0.0
free System Tweaker Extends operating system's capabilities: Drive Cleaner, Registry Cleaner, Internet Cleaner, DLL Cleaner, StartUp Tuner, File shredder. Optimizes PC performance, corrects problems, and protects your privacy.

 2)   Free System Tuner 3.0.0.2
free System Tuner Extends operating system's capabilities: Drive Cleaner, Registry Cleaner, Internet Cleaner, DLL Cleaner, Internet Tuneup, StartUp Tuner, File shredder. Optimizes PC performance, corrects problems, and protects your privacy.