@elyseewoo Since this is moving somewhat off-topic for the original thread (and that thread was a bit old), I've split your comments into their own separate thread.
It sounds like you have everything you need to install TS3 without Origin... as long as you're running some version of Windows. The newest versions of mac OS won't authenticate TS3 discs; Origin is the only way to go there. But for Windows, the process goes like this:
- If you've ever had the game installed on this computer, you'll need to clean the registry after uninstalling, either manually (see these instructions) or with a tool like Piriform's CCleaner. Otherwise, those leftover registry entries can prevent you from launching the game going forward.
- It's also a good idea to uninstall Origin before proceeding.
- Before starting, download the Super Patch so that you can manually patch your game to 1.67 after installing. The launcher doesn't do a good job of patching on its own, especially when you're starting with an unpatched base game.
- Next, take your computer completely offline—disconnect from wifi or unplug the ethernet cable.
- Now you can install the base game. You'll get an offer to let the EA Download Manager oversee the install process. Say no. The EADM will do everything it can to update itself to Origin.
- When the base game is installed, run the Super Patch, and then launch the game to make sure it runs. Now you can install your packs one by one, and you can be online again as well. The launcher may ask you to patch the early packs, as they each had their own patches. This should be fine—the launcher itself has no way of forcing you into an Origin-controlled install.
If you do need or want Origin for other reasons, make sure that the option for automatic game updates is turned off. (Hover over your username and click Application Settings. Under Application—the first tab—scroll to Client Update and disable the option.) Origin has occasionally been known to try to auto-update anyway, although I think a disc-only install that has never used Origin should be safe. Still, be sure to pay attention if and when you open Origin.
It's possible that your system won't authenticate your discs. You can try running the installer in compatibility mode for an earlier version of Windows, although the game itself will run just fine in Windows 10. If you get stuck on this step, let me know, and I'll point you to people who can help. I've never been through this myself, but probably half the people still active on the official Sims forums have disc installs, and they'd be happy to offer some advice.
