Works great - very useful
Advanced SystemCare - Free optimization software & registry cleaner for Windows 10, 8, 7, Vista and XP. Advanced SystemCare Free to speed up PC, clean registry and repair system in one click.
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.
AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode
Ambeteco 4-Organizer Ultra - 4-Organizer Ultra uses AI-powered technologies to organize, optimize, speed up, declutter, clean, and care about your PC, fully automatically. File Sort AI, Deep Scan AI, Speedup AI, and Auto Scan AI: take full control of your PC, again.
CleanMyMac X - Clean, protect and speed up your Mac