I just installed my Windows 10 upgrade 2 evenings ago on my Lenovo Lynx tablet. It works pretty well when I am docked to the keyboard, but:
1) I had to tell it to automatically switch to tablet mode when I undock, and it still doesn't seem to do so.
2) When in tablet mode, the virtual keyboard doesn't pop up on the screen when I touch a search entry field -- or really anytime. So I am fairly helpless without my dock.
I did set it to automatically start the onscreen keyboard at start-up, which it does. I even see the keyboard icon on the taskbar, though it is unresponsive. As soon as I switch to tablet mode, that icon, and the keyboard go away. I did find a way to get the keyboard back, but it is very sluggish.
The virtual keyboard and the mode switch all worked seamlessly in 8 and 8.1. If there is no solution for the problems I describe, I will have to revert to 8.1
Is this a driver issue? I had trouble with the screen resolution in 8.1 until I went to Lenovo for a different video driver. Is that what is happening here too?