My computer is Windows 7 + 2G VRAM, however newer SpaceEngine needs Windows 10 + 3G VRAM, so when I updated my SE version and run it, there were two wornings to let me know these, and the game becomes quite stuck. Upgrade to Windows 10 is easy, but replace GPU in a notebook computer is very difficult.

So do you intend to upgrade to win 10? Playing games with constant lag is very annoying.