Are there any free (and trustworthy) antivirus software out there?

AVG from GriSoft has scored well in antivirus tests and is available free for personal use:

http://www.grisoft.com/doc/5/lng/us/tpl/...

The same goes for Avast!

http://www.avast.com/eng/avast_4_home.ht...

Are there any free (and trustworthy) antivirus software out there?adware remover

AVG free edition

Are there any free (and trustworthy) antivirus software out there?antivirus protection

I just recently tried ClamWin and have found it to be very easy to use and as thorough as AVG
I'll 2nd or 3rd AVG. I run AVG on my client's computers and I trust it enough to run at home.
Grisoft makes a very good free virus scanner that is updated regularly.

htp//www.grisoft.com
AntiVir is at least as good as AVG, better than Avast and definitely better than ClamWin. ClamWin should only come in as a second opinion.
Yes there is from the responses above.

Antidote Super Lite version

Freeware lite version of the commercial Antidote program. It utilizes the same virus database as the commercial version.

Anti-vir

Free anti-virus software for Windows. Detects and removes more than 50,000 viruses. Free support.

Avast!

Anti-virus program for Windows. The home edition is freeware for noncommercial users.