Top Freeware (security)

Security

AVG Free - antivirus

Avast Home Free - antivirus

AntiVir PersonalEdition - antivirus

BitDefender Free - antivirus

ClamWin - antivirus

CyberDifender - Internet Security Suite

Ad-aware - anti-spyware

Spybot: Search & Destroy - anti-spyware

Windows Defender - anti-spyware

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

Microsoft Baseline Security Analyzer - identify security misconfigurations