how to remove virus in my laptop?

I have bought a second hand laptop and it si infected with virus which program sohuld I install in my laptop?
how sohuld I remove it?
serafim Bernardo, January 2010


done
Avast is probably the best free anti-virus program available right now.

Jay, February 2010
How do you know it's infected with a virus?

Many of the free virus scan programmes are not always what they appear to be - some contain spyware and some run & scan and then ask for payment for a solution.

Here is a link to a comprehensive list...

http://en.wikipedia.org/wiki/List_of_antivirus_software

Good luck...

Peccavi, January 2010