AVG Free edition seems to be excellent.
Note that multiple ANTI-VIRUS programs will often conflict with each other.
Multiple ANTI-SPYWARE programs are fine. Spybot:Search and Destroy, Malware Fighter, Ad-Aware, and Advanced System Care all have free versions for anti-spyware.
Also, you should have a FIREWALL - Zone Alarm has a free 2-way version.
i had avg but i think it's not so good :/
because i uninstalled it and installed MICROSOFT security one, it found some viruses avg didn't fine..but i downloaded AVG PC TUNE UP, it's pretty awesome !
Thanks for answering :)
AVG OR NOD32 and if you need any more info tell me
AVG Free Edition is excellent. Avast is supposed to be goog too.
Avast, it's awesome.