This worked for us after a lot of trial and error.
So after multiple days of dealing with having to download and reinstall the game on my cousins PC I've come to the conclusion that anytime Windows 10 Home edition was our primary operating system the game would lose files upon rebooting and we'd have to repair/reset, download/install them each time we were wanting to play.
The PC's my friends have all build I've given or requested they use Windows 10 Pro 64x and none of them have had any issues.
After testing a clean install of windows 10 home and installing I was running into the same issues as stated above, only after installing Windows 10 Pro 64x I was able to play the game without any hitches after rebooting.
I'm not sure what the correlation is or what causes it but that was what worked for me and any of my friends that had issues with the game.
Hope this helps anyone out there.