I'm using Windows 7 Professional 64-bit. Now, I can't even play the game because now whenever I load my city, and try to switch from pause to ANY game speed (it doesn't matter whether it's African Swallow or any other game speed) it crashes. If you know the answer it would help to put it here in this PC game tech support wiki (and anything else you can add to it) https://pcgamingwiki.com/wiki/SimCity_2000