|What version of windows is it? From a quick google search, it looks like it only has 128mb or ram. Any of the newer operating systems won't run at all. So you will need to find an old copy.|
It sounds like the original owner's never registered windows. If you can live with that message, I don't think it should be a problem, considering how long the original owners must have been running it. If not though, you will need to find a copy of windows 98 (or any of the older ones).
Also, please avoid posting the same question twice, edit your first one if you have to. This is also the wrong forum section, as this is not a programming issue.
Can I put a question here?