timmmay:MikeB4:timmmay: So is it still possible to effectively pay for W10 by being an insider giving feedback, or has that ship sailed?
If it's the persons main computer using insider builds is ill advised. They probably need to start with their latest legit OS and do the upgrade path, after that they can clean install if they have an activated install registered.
$200 for W10 home is a lot of money to some people, if they wanted a full version of W10. There's no upgrade path from XP as far as I know. So it's probably either ancient XP with security issues or W10 insider, which should be pretty reliable by now.
They may have to bite the bullet, there is few free rides except maybe Linux