Perfect free PC optimizer, good looking and you can actually choose the function where it increases the startup speed of your device.
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Malwarebytes - Malwarebytes protects you against malware, ransomware, and other advanced online threats that have made antivirus obsolete and ineffective. Free Anti-Malware & Malware .
Ashampoo WinOptimizer - Ashampoo WinOptimizer Free – Speed up your system.
Avira - Cloud based email security solution
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.
Microsoft Security Essentials - Microsoft Security Essentials is Microsoft's own foray into the world of virus protection.