CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
Yamicsoft Windows Manager - Yamisoft provides the utility products to speed up windows 10, tweak optimize windows and repair windows 10 free download with our professional software and enhance your experience.
AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode
TweakNow PowerPack - Windows customization utility