Then return to post #17. Clean install Win 10 on a spare disk. Install your game. See if it runs. If you have problems, it owuld seem to be a conflict with Win 10.

But given the number of reports of problems with it (none of which appears to be the same as YOUR particular case, from what you say), this suggests the game is vulnerable.

And if none of the other case reported match YOUR particular case, this suggests either yours is relatively unique- or particular to your settings, configuration, or other installed programs.

Without doing the clean install check, you can't conclude on a case of 1 this is definitely a conflict with Win 10. And if it is, that needs to be referred to the game producers, who need to upgrade for compatibility.