[NorthMountain]

I am very happy with Windows 8.1. Why should I upgrade to 10?

You shouldn't.

Seriously. If you actually like Win-8.1, keep using it. When the real Win-10 gets out in the real world, take a look at it and see if there's anything in there that you like, that isn't in Win-8.1 ... then you can answer your question for yourself.

[Lazamataz]

I am running Commodore BASIC 2.0 for the VIC-20 and it’s fine.