Malicious Software Removal Tool
The Microsoft Windows Malicious Software Removal Tool checks computers running Windows XP, Windows 2000, and Windows Server 2003 for infections by specific, prevalent malicious software-including Blaster, Sasser, and Mydoom-and helps remove any infection found. When the detection and removal process is complete, the tool displays a report describing the outcome, including which, if any, malicious software was detected and removed.
Clam AntiVirus is a GPL anti-virus toolkit for UNIX. The main purpose of this software is the integration with mail servers (attachment scanning). The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. The programs are based on a shared library distributed with the Clam AntiVirus package, which you can use with your own software. Most importantly, the virus database is kept up to date.
Free avast! 4 Home Edition
avast! 4 Home Edition is a full-featured free antivirus package designed exclusively for home users and non-commercial use. Both of these conditions should be met!
Free online scanning tool from TrendMicro. You'll need to download the necessary files from their website before you can proceed.
Previously known as AntiVir PersonalEdition, PersonalEdition Classic protects
against viruses, worms, Trojan horses and spyware, including dialers. Yes it's a freeware.
BitDefender Online Scanner
BitDefender Online Scanner is a fully functional antivirus product. It features all required elements for thorough antivirus scanning and effective cleaning: it scans your system's memory, all files, folders and drives' boot sectors, providing you with the option to automatically clean the infected files.
up your PC with PC Pitstop for free
diagnose your hardware, hard disks, and Internet connection, and
to check your system for viruses. It then provides a summary report,
problems and tips for maximising your PC performance.
ActiveScan's is a free browser-based
tool that can find and remove over 55,000 viruses and Trojan horses.
Check your entire PC or specific folder or file. It easy to use
and unlike other service, its updated daily.