Yes it does, whilst it is a very rare occasion to actually come into contact with a ‘virus’ all historic antivirus programs retain that categorisation. However, the greatest amount of stuff you are likely to come into contact with is classed as malware.

PUP (Potentially Unwanted Program) by default scanning for pups is disabled by default, given what is shown these are registry entries and without any accompanying program/file would be inert even if avast were scanning for PUPs. Also avast doesn’t specifically scan the registry, I believe if it found malware on your system, then, it would try to find any associated registry entry.

If you are using keygens, then you are leaving yourself open to risk/malware (who would you complain to), not to mention the legality issue. If you are using keygens then as the official support forum for Avast we couldn’t condone that.

I also can’t see how a folder would be classed as Malware.

You don’t say what detected these things on your system ?
Who is to say they are correct.