Works great - very useful
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
System Mechanic Ultimate Defense - Protect the whole family and up to 10 devices with malware and virus protection, password management, internet privacy, speed and optimization, and more.
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.
Advanced System Optimizer - Advanced System Optimizer. Advanced System Optimizer is the most powerful cleanup and optimization software for Windows 10/8. 1/8/7/Vista and XP. We've been developing Windows performance software since 1999.
AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode
MyCleanPC - Try out MyCleanPC's PC cleaner online to find out how you can speed up Windows in 3 easy steps with a professional computer cleaner and free PC diagnosis.