Unable to start

BorealVidaCozy​  Do you still need help?  I read through your post on the Spanish forum, and it sounds like the game is running but is somehow in English now.  In case you're not aware, it's normal for the Spanish version to name the user folder "Los Sims 4" rather than "The Sims 4," and sometimes switching languages fixes this kind of error for exactly that reason—the problem is in the old user folder, and the new language uses a different folder and therefore sidesteps the issue.

Having said that, a new Windows account should also get around the issue, unless you imported your data to the new account, or you tied it to your Microsoft account and allowed OneDrive to sync your files.

For the current language issue, the next step (if you haven't done so already) would be to clear the EA App's cache, again, and repair, again, in order to try to force the game to download the correct language strings.

At any rate, let me know if you'd like help at the moment.

Thank you so much for your reply. I still can't play in my language.

I've never changed the game's language before (I always play in Spanish), and I solved the error that was preventing me from entering the game by changing the language to English. But now I'm unable to play in Spanish. I've tried changing the game to other languages, and it always appears in English.

It keeps creating the "The Sims 4" folder even after I delete it and clear the cache. I even tried creating a new Windows account before, and the same problem persists: it keeps generating an English game folder, making it impossible to play in another language. Even if I manually create my own "Los Sims 4" folder, it still generates and uses "The Sims 4."

BorealVidaCozy​  The language of the Sims 4 folder will follow the language the game is using, so that's not a surprise.  The only way to change the language, other than uninstalling and reinstalling, is to choose a different one in the EA App, under Sims 4 > Manage > View properties.  If you choose Spanish there and repair the game (yet again), are you still seeing English, or does the game not open at all?

Please also check your antivirus for recent actions related to Sims 4.  Some AV programs, Windows Defender included, can block programs' access to the Documents folder, and that could prevent Sims 4 from working in Spanish, but not in English, if the block targeted "Los Sims 4" in particular.

If I change the game language in the EA App, but when I open it, it recreates the English "The Sims 4" folder, I've tried several languages ​​and the same thing happens. The game opens, but in English, even if I check later and the EA App has a different language selected.

I tried completely disabling my antivirus, and now I've excluded the EA App and game files to prevent interference.

It seems the problem is that when the game starts, something inside is telling it to use English, which is why it creates that folder.

BorealVidaCozy​  Try doing a clean uninstall of the game and the EA App, and reinstalling in Spanish.  Here's how to clean-uninstall:

📓[GUIDE] [PC] How to Clean-uninstall Sims 4 | EA Forums - 12636503

I would leave your antivirus disabled while reinstalling and testing the game, although you will of course want to reenable it afterwards.

If the game doesn't start again in Spanish, don't switch back to English; just let me know what you see.

I followed all the steps, but when I go to uninstall The Sims 4, I only see these two options:

The game itself doesn't appear. I've uninstalled both DLCs and everything related, including the EA App. But when I try to reinstall the EA App, it says it's already installed, and I've tried opening it, and it opened without any problems and without downloading anything... but if I look for it in the uninstallation program, it's no longer there because it supposedly uninstalled it.

Even if I try to uninstall the game from the EA app, it tells me that the uninstallation is complete, but when I click play it opens the game.

I'm unable to uninstall the game. I've also tried CCleaner, and neither the EA app nor the game appears, but I can open them without problems (except that the game is still in English even though the EA app is set to Spanish).

I had to manually delete the folders to uninstall the game and the EA app. And when I tried to launch it again, I got the same error as before, so I guess I'll have to switch the language back to English for it to open 😢

BorealVidaCozy​  Now that the game is running again, try again to uninstall it either with Revo or CCleaner. It will probably be under the name "The Sims 4" rather than "Los Sims 4."  What I think is that there are leftover registry entries telling the game or the EA App to choose English, and these were not removed when you deleted the game's program files.

The game still isn't showing up in Revo or CCleaner. In Revo, I found a "hunter" mode that uninstalls everything open on the screen, so by opening the game, I was able to get it detected.

It was listed in C:/Program Files/Games EA/The Sims 4/Game/Bin/TS4_x64.exe. I uninstalled everything and then used the same method to uninstall the EA app.

Afterward, I restarted my PC, and when I tried to install the EA app, it said it was already installed on my PC and asked if I wanted to open or repair it (I clicked repair, but clearly I wasn't able to completely remove the game). The Sims game still shows as installed, but when I try to play, it says there's an error and I need to repair it.

Before opening it, I checked the game's language in the EA app, and it was set to English, so I changed it to Spanish. After repairing it, I open it and it's still in English... When I go to properties to check the language, it says the installation folder is C:/Program Files/Games EA/The Sims 4. I don't know if to change the language I should put "C:/Program Files/Games EA/Los Sims 4" there, but I don't see any way to change it from there; it just opens the folder.

The problem must be related to one of those translation files that aren't deleted with a normal uninstallation, but it's not letting me completely uninstall the EA app/game with these programs.