Free software for identifing and removal of spyware, adware, and viruses. Some software downloads offer ongoing protection, while others are for scanning and detection.

Thanks to WinOSS CDRom for contributing to this software list
ClamWin Free Antivirus

Clamwin is a free anti virus for Microsoft Windows 98/Me/2000/XP/2003. It provides a graphical user interface to the Clamav engine. Note, this program does not have on access scanning. This is best used for scheduled anti virus file system scanning.

Windows
Winpooch

Winpooch is a Windows watchdog, free and open source. Anti spyware and anti trojan, it gives a full protection against local or external attacks by scanning the activity of programs in real time. Associated with ClamWin antivirus, Winpooch keeps safe your computer against virus.

Windows