Top free antivirus security freeware software

Freeware does not always mean poor quality in some cases. Nowadays, there are many good free software that are equivalent to paid commercial software. If you are looking for free antivirus and security software, then you may explore the following.

Microsoft Security Essentials - free antivirus from Microsoft
AVG Free - antivirus
Avast Home Free - antivirus

AntiVir Personal Edition - antivirus
BitDefender Free - antivirus
ClamWin - antivirus
CyberDifender - Internet Security Suite
360 Total Security - AntiVirus (uses multiple Anti Virus Engines) along with other miscellaneous tools such as cleaner, registry cleaner, etc.

Ad-aware - anti-spyware
Spybot: Search & Destroy - anti-spyware
Windows Defender - anti-spyware, available by default on Windows OS
SpywareBlaster - anti-spyware
Spyware Terminator - anti-spyware
Tootkit Reveaker - rootkit detection utility
Winpooch - system protection
HiJack Free - system protection
HighJackThis - hijackers detector and remover

Kerio Personal Firewall - firewall
Sygate Personal Firewall - firewall
ZoneAlarm - firewall

AxCrypt - file encryption
Simple File Shredder - securely delete files
PuTTy - SSH client

KeePass - password manager
LockNote - password manager
nPassword - password manager

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