Constructor Fans.... Sadly, there seems to be an issue found on the PC demo for Windows 7 fans. The game is calling for a function only found is OS Windows 8 and beyond which is CreateFile2 and Kernal32.dll. On some Windows 10 machines there was an issue with a packaging file. Both issues are being addressed and a fix will be automatcically updated on Steam shortly. Whist every update then can cause other issues the game does run on Windows 7 and the game code has passed an external independent QA team used by many industry games conpanies. We think the issue occurred on a feature update to the game that was put into the code last minute. We had thought of pulling the demo after the issue was found but as it did not effect all users we felt putting the demo live was still the best thing to do. We are very sorry for the problems fans with Windows 7 have had and this issue will be fixed shortly. A few fans have also found that the scroll at the edge of a 3 monitor set up does not scroll smoothly but if played on just a one monitor with the same machine set up it does. That issue will be addressed soon as well. A full list of updates will be published shortly. Again apologies to all Windows 7 Constructor fans. Thank you.