Which products work with Windows Professional 64 Bit OS?

Avast Free Antivirus / Premium Security
1

I am probably posting this in the wrong section and if that’s the case feel free to move it.

I have a PC with Windows XP Professional 64 Bit Edition OS and am trying to find a good compatible Anti Virus program. I have always used Symantec in the past but they don’t do anything that works with the 64 Bit OS.

Which Avast products work with Windows Professional 64 Bit and which in your opinion are the best?

Also with my lack of CPU knowledge it will need to be pretty simple to install/set up.

2

Well avast has worked on 64bit Windows for some time, http://www.avast.com/eng/x64.html avast! 4 Home and Pro both work with x64 OS. As to the best between these two it depends on your requirements. Avast Home V Avast Pro differences http://www.avast.com/eng/av4_version_comp.html.

I trust you weren’t asking about competitive AVs that support windows x64 ;D as we could be forgiven for being a little biased on the official forums of avast! ;D