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.
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
Unity Tweak Tool - Unity Tweak Tool is a settings manager for the ...
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.