I have just installed Avast! Free (custom install) on my Win 7 x64 PC. Although I've ran Avast! Free before on a different machine this is the first time I have run Avast! on this particular machine.
As you can see, it doesn't seem to be able to detect any AV on my computer. I've actually turned off the messages about virus protection in the centre itself.
Avast!, on the other hand, is working fine.
Is this just a bug?