AdwCleaner - AdwCleaner is a free removal tool for : Adware (ads softwares)
TinyWall - Lightweight and non-intrusive firewall
Malwarebytes - Malwarebytes protects you against malware, ransomware, and other advanced online threats that have made antivirus obsolete and ineffective. Free Anti-Malware & Malware .
SonicWall - SonicWall security solutions protects your network, systems, users and data from cyber threats.
HijackThis - HijackThis is a malware detection and removal tool that's ideal for users who demand more granular control over every aspect of their computer's performance.
pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more