1. CCleaner: This software is free and can be used to clean junk files, optimize your Registry and protect your privacy.
2. Wise Disk Cleaner: This program helps you find and remove unnecessary files that take up space on your hard drive and slow down your computer.
3. Glary Utilities: This software has over 20 tools which can help you clean up your system, optimize settings, speed up boot-up time, diagnose issues and much more.
4. IObit Advanced SystemCare: This comprehensive system optimization software finds and fixes problems, boosts performance, removes malware, optimizes system settings and more.
5. Auslogics BoostSpeed: This program helps boost the performance of your PC by defragmenting files, disabling unnecessary programs, cleaning up junk files and more.
6. AVG PC TuneUp: This program can do a deep scan of your computer and help you to speed up boot time, enhance gaming performance and improve battery life.