Whats a good virus scanner / remover thats free?

Well my comp has been infected with trojan and adware programs and i need a scanner that can find and delete them thats free anyone know of one?

Whats a good virus scanner / remover thats free?adware

AVG or Avast.

Whats a good virus scanner / remover thats free?antivirus scan

All of the following are free.

Virus Removal

AVG

http://free.grisoft.com/freeweb.php/doc/...

Avast

http://www.avast.com/eng/free_virus_prot...

Sypware/Malware Removal

Adaware

http://www.download.com/Ad-Aware-SE-Pers...

Spybot S%26D

http://www.download.com/Spybot-Search-De...

Fire Wall

Zone Alarm

http://www.zonelabs.com/store/content/co...
go to

housecall.trendmicro.com
Below are some free antivirus and antospyware programs that you can try. Also included is a spyware blocking tool and a cache cleaning tool..

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Spyware Blocker

This is free and requires you to check for and enable updates manually once a week or so. It uses no system resources. It blocks spyware before it installs.

SpywareBlaster (inoculates, not a spyware removal tool)

http://www.javacoolsoftware.com/spywareb...