@morrema I've moved your post to its own thread.
I'd be happy to write out some instructions. But I need to know the full specs of your Mac, since the Bootcamp process is simplified for newer models. Please provide all the information listed here:
https://answers.ea.com/t5/Technical-Issues-Mac/READ-FIRST-Sims-3-Mac-Help-Guides-and-Troubleshooting...
You'll also need enough free storage to dedicate to the Windows side of the partition. You can see how much you have by clicking the Storage tab on the About This Mac info screen. And you'll need to be willing to purchase a retail license for Windows 10, although you don't have to do that right away. (If you're not sure about this, you can Bootcamp first and then add the code a few days later.) You can find a legitimate code for around $110 on Amazon, since you don't need the install medium; I'll look up options later if you want to go this route.
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I don't work for EA. I'm just trying to help fellow players with their games.
