The best advice I can give you is to try the free download available from the official site, which should work perfectly fine on a MAC. Unfortunately, even though Microsoft has issued an official update for the older windows versions of Football Manager, it seems that they have not got round to making a release for the MAC, so I have no idea what to do now. This is because Microsoft has not released an official update for the older versions of Microsoft Windows, and instead it uses the Microsoft Windows XP Service Pack 2 as the operating system. If you are using a Macintosh computer then you might want to think twice about purchasing the upgrade, as the latest update does not work properly on this platform. This means that if you have a computer with an Intel based processor, and a Windows based operating system, Football Manager will run flawlessly on your machine. This upgrade packs the same great content of the original with all the new additions and improvements that the later game had, but it also comes fully equipped to run on the newer operating systems, namely: Windows and Macintosh. The latest version of Football Manager 2021 is now available for download from the official website and is known as Football Manager Vista.