Works great - very useful
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
Debloat Windows 10 - A collection of Scripts which disable / remove Windows 10 Features and Apps.
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.
Windows10Debloater - Script/Utility/Application to debloat Windows 10
AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode
AME Wizard - AME Wizard is an opensource tool for modifying Windows.