Ok, thanks. Have you played an older version before, and did it work?
Are you on discord? It could be useful for me to get your log files - so I can talk you through the steps on discord. I have a couple of things I can try to hopefully fix the problem. https://discord.gg/RcVFtEw
Sorry about the problems. It's quite frustrating for me. You arent the first Windows 7 user to have problems, and I think it might be due to some Unity bugs. Do you ever have issues with other Unity games?