25 Anti-Malware Free Downloads

a-squared Free 4.5.0.27
Emsi Software - 82.40MB (Freeware)
Download
 
Ad-Aware 8.3.5.0
Lavasoft - 124.85MB (Non-Commercial Freeware)
Download 


AntiVir Personal 10.0.0.592
Avira GmbH - 50.66MB (Non-Commercial Freeware)
Download 


Avast! Free Antivirus 5.0.677
Avast Software - 52.53MB (Non-Commercial Freeware)
Download 


AVG Anti-Spyware 7.5.1.43
AVG Technologies - 11.84MB (Shareware)
Download 


AVG Free Edition
AVG Technologies - (Freeware)
Download - AVG Free Edition 10.0.1170 (32-bit)
             Download - AVG Free Edition 10.0.1170 (64-bit)

BitDefender 10 Free Edition
BitDefender.com - 21.08MB (Freeware)
Download 


ClamWin 0.96.4
ClamWin - 35.13MB (Open Source)
Download 


Cloud Antivirus 1.3.0
Panda Security - 31.91MB (Freeware)
Download 


CWShredder 2.19
Trend Micro Inc - 520KB (Freeware)
Download 


Emsisoft Anti-Malware 5.0.0.84
Emsi Software - 95.95MB (Commercial Trial)
Download 


HijackThis 2.0.4
Trend Micro Inc - 1.34MB (Freeware)
Download 


Kaspersky Anti-Virus 11.0.1.400
Kaspersky - 103.92MB (Commercial Trial)
Download 


Malwarebytes Anti-Malware 1.50
Malwarebytes - 7.27MB (Shareware)
Download 


McAfee VirusScan 10
McAfee - 9.54MB (Commercial Trial)
Download 


Microsoft Security Essentials
Microsoft Corporation - (Freeware)
Download - Security Essentials 1.0.2498 Vista 64-bit
             Download - Security Essentials 1.0.2498 Vista
             Download - Security Essentials 1.0.2498 XP

NOD32 AntiVirus 4.2.67
ESET - 40.41MB (Commercial Trial)
Download 


Norton AntiVirus 2009 16.5.0.134
Symantec - 60.10MB (Commercial Trial)
Download 


Rootkit Revealer 1.71
Microsoft SysInternals - 226KB (Freeware)
Download 


Spybot Search & Destroy 1.6.2
PepiMK Software - 15.65MB (Freeware)
Download 


Spyware Terminator 2.8.2.192
Spyware Terminator - 11.09MB (Freeware)
Download 


SpywareBlaster 4.4
Javacool Software - 3.05MB (Non-Commercial Freeware)
Download 


SuperAntiSpyware 4.46.1000
SUPERAntiSpyware - 9.40MB (Freeware)
Download 


Windows Defender 1.1.1593
Microsoft Corporation - 4.95MB (Freeware)
Download 


WinPatrol 19.3.2010.5
BillP Studios - 757KB (Freeware)
Download 


Source :: http://www.filehippo.com/software/antimalware/