RKill

Put a halt to all the dangerous processes that run in the background

AdwCleaner

Remove adware and other unwanted software

Norton Power Eraser

The last chance to remove viruses

Ghidra

The NSA's reverse engineering tools

OWASP Mantra

A pack of tools to check a website's security

RogueKiller

Protect your computer against any malware

FileASSASSIN

Unblock and eliminate the malicious and unwanted files from your computer.

RogueRemover

Remove false antivirus alarms from your computer

Mandiant Redline

Audit your computer in search of malware

Latch Antiransomware

Anti-ransomware tool created by Telefónica's cybersecurity division

WOT Internet Explorer

Discover if a website is dangerous with this plug-in

Spyware Doctor

Detect and protect your PC against threats like Spyware, Adware or Trojans

Preventon

Protection against Internet dangers and malware

Winpooch Watchdog

Make sure your programs don't carry out dangerous operations

SpyHunter

Find viruses and dangerous software

360 NSA Cyber Weapons Defense Tool

Security tool against the NSA's cyberweapons

ZoneAlarm Free Firewall

Considered as the best free firewall

Norton Personal Firewall

The firewall developed by Norton

Sygate Personal Firewall

Free firewall that is very easy to use

Comodo Firewall

Protect your PC with this professional firewall

Kerio WinRoute Firewall

Improve the security of any corporate network

FortKnox Firewall

Protect your PC against external attacks

BlackICE PC Protection

Personal firewall to protect yourself against external attacks

Lavasoft Personal Firewall

Prevent anybody accessing your computer without permission

ZoneAlarm Pro

Security and protection at all levels

Firewall App Blocker

Make it easier to block applications with the Windows Firewall

Online Armor

Protect yourself against Internet dangers with this free firewall

Rising Personal Firewall

Personal and appealing Firewall for Windows

ZoneAlarm ForceField

Browse the Internet with total security

DefenseWall Personal Firewall

Defend your computer from attacks over Internet

Bitdefender Internet Security

Antivirus protection, firewall and optimizer all in one