Ultimate Windows Tweaker - Ultimate Windows Tweaker is a freeware Tweak UI Utility for tweaking and optimizing Windows.
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Winaero Tweaker - Universal tweaker software which supports Windows 7, Windows 8, and Windows 8.1.
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.
TweakVista - Microsoft has increased both the power and complexity of its popular Windows operating system with...
AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode