Spyware

To prevent spware attack from internet bellow one is recommendable.

http://www.javacoolsoftware.com/downloads.html
To scan for already existing spyware which is already infected in your system bellow one is best.
http://www.superantispyware.com/
This bellow one is also best for removing and preventing spyware
http://www.safer-networking.org/en/download/index.html