Perfect free PC optimizer, good looking and you can actually choose the function where it increases the startup speed of your device.
Malwarebytes - Malwarebytes protects you against malware, ransomware, and other advanced online threats that have made antivirus obsolete and ineffective. Free Anti-Malware & Malware .
Ad-Aware Free Antivirus+ - Ad-Aware Free Antivirus+ is a world’s most leading security solution that gives you comprehensive malware protection with real-time monitoring, threats alerts and automatic updates you can rest easy knowing that you are protected.
Avira - Cloud based email security solution
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Mac Internet Security X9 - Intego is the industry leader for Mac antivirus, security, utility and parental controls. Products include: VirusBarrier, Mac Internet Security, Mac Premium Bundle and Family Protector.
Norton PC Performance Optimization - Norton PC Performance Optimization that is also called as Norton PC Optimizer is the PC speed enhancement tool by the Norton security system.