Spybot Search and Destroy is a Free security tool created by safer-networking that can be used to detect and remove Spyware and Malware, and correct registry issues. Spybot Search and Destroy Portable is a portable wrapper created by portable apps that enables you to carry this Anti-Spyware, Anti-Malware Tool with you on a flash drive.
A Portable Spybot Search and Destroy:
Authors Website: http://www.safer-networking.org
Portable Wrapper: portableapps.com/apps/security/spybot_portable
Download: Grab this Free Spyware Malware Remover HERE
Note: Alternately you can Download and Install the original version of Spybot to your PC, and then simply copy the installation directory to your USB Flash Drive.