Hmm... Windows 10 should NOT be presenting such a problem.
Sorry pablo_b, but the best and only idea I have for you at this time ~ as fixes & updates are still being made by Amanita Design ~ is that you re-download the most recent Samorost3 Windows install file and hope that a newer versions of the installer will fix your problem.
Meanwhile I will keep trying to find a more specific solution for you. Good luck! And please post a follow up if/when you find the solution to your problem before I can.
~Alex