So I bought this beautiful and quality and affordable One tray with Win 8.1 full version. On it, I can now run completely normal Viewer for Second Life and get this - in low resolution - at least up to 15 fps out. That's enough for outpatient use, on the road, or even in the hospital, etc. Also Windows games, such as The Forest, run smoothly in low resolutions.
One problem I had with the first use of Second Life, or The Forest: not done with fingers, it is there, the touchpad on the keyboard responds only imperfectly. So I bought a Bluetooth mouse for 12 Euro. This was immediately recognized and integrated. Now I can control Second Life perfectly with docked keyboard and mouse.
What I can say so far: the One is a very good, smooth-working tray with an excellent display, very good normal operating system - no ordinary makeshift Android -. You can expand the memory and outsource some long videos etc. on the SD card.
On the whole, it works on this tablet as on a Win 8.1 laptop, only that it is much more manageable and easier.
Very nice also the solution that you can use the attached keyboard as an envelope. So the tray is well protected and incredibly easy to take anywhere.