There have been reports of this. Here:
Thread #1 (http://www.feral-heart.com/index.php?option=com_jfusion&Itemid=2&jfile=index.php&topic=52819.0)
Thread #2 (http://www.feral-heart.com/index.php?option=com_jfusion&Itemid=2&jfile=index.php&topic=53039.0)
Thread #3 (http://www.feral-heart.com/index.php?option=com_jfusion&Itemid=2&jfile=index.php&topic=52596.0)
From what I have been hearing from other users who download Windows 10 that a lot of games are having issues running. Not just Feral Heart. League of Legends has even had issues on Windows 10 as well. From what I understand the program still has a bug in it, and can some times if unlucky make your computer or laptop unusable. My suggestion is to try to revert back to Windows 8 or 8.1 if you had a Windows 7 computer though try and see if you can get Windows 7 back somehow.