Blog

The Sims 4 is a popular life simulation game enjoyed by millions. Sometimes, certain features may not work as expected. One common issue on Windows 11 is the Alien Disguise bug, where the disguise option does not activate properly.

This guide will help you fix the Alien Disguise bug with simple, step-by-step instructions. No advanced technical skills are needed. Just follow along carefully.

We will start with easy checks and move to more involved solutions. This way, you save time by trying the simplest fixes first.

By the end, you should be able to enjoy the Alien Disguise feature in Sims 4 again without any issues.

Quick Note Before You Begin

• Make sure your game is fully updated through Origin or EA App. Outdated versions often cause bugs.
• Verify that your Windows 11 system is up to date. System updates can affect game performance.
• Close any background apps that might interfere with Sims 4, such as overlays or recording software.
• Backup your saved game files before making any changes to avoid data loss.

Step 1: Restart Your Computer and The Sims 4

Sometimes the simplest fix is to restart. This clears temporary glitches or memory issues that may block the Alien Disguise from working.

1. Save your game progress and close The Sims 4.
2. Restart your Windows 11 PC by clicking on the Start menu, then “Power,” and selecting “Restart.”
3. Once restarted, open The Sims 4 and test the Alien Disguise feature again.

If the problem persists, move on to the next step.

Step 2: Repair The Sims 4 Game Files

Corrupted or missing game files can cause features to malfunction. Repairing the game through the Origin or EA App can fix these files automatically.

1. Open Origin or EA App and go to your game library.
2. Find The Sims 4 in the list.
3. Right-click the game icon and select “Repair” (in Origin) or click the three dots next to the game and choose “Repair” (in EA App).
4. Wait for the process to complete. This may take several minutes.
5. Launch the game again and check if the Alien Disguise works.

This step is important because sometimes game updates or crashes corrupt files related to gameplay features.

Step 3: Clear The Sims 4 Cache Files

Cache files store temporary data that helps the game load faster. However, corrupted cache can cause bugs like the Alien Disguise issue.

1. Close The Sims 4 and exit Origin or EA App completely.
2. Press Win + R on your keyboard to open the Run dialog box.
3. Type %appdata% and press Enter.
4. Navigate to the folder named Electronic Arts, then open The Sims 4.
5. Delete the folder named localthumbcache.package. This file is safe to remove and will be recreated by the game.
6. Restart the game and try using Alien Disguise again.

Clearing cache helps because it removes outdated or corrupted temporary data that might interfere with gameplay.

Step 4: Disable Mods and Custom Content

Mods and custom content can sometimes conflict with the Alien Disguise feature, especially if they are outdated or incompatible with Windows 11.

1. Close The Sims 4.
2. Go to your Sims 4 mods folder, usually located at DocumentsElectronic ArtsThe Sims 4Mods.
3. Move all files and folders inside “Mods” to a temporary folder on your desktop.
4. Launch the game without any mods or custom content.
5. Test if the Alien Disguise works now.

If disabling mods fixes the issue, update your mods or remove those causing conflicts.

Step 5: Update Your Graphics Drivers

Graphics drivers help your computer display the game correctly. Outdated drivers can cause visual bugs or gameplay errors.

1. Press Win + X and select Device Manager.
2. Expand the “Display adapters” section.
3. Right-click your graphics card and select “Update driver.”
4. Choose “Search automatically for updated driver software.”
5. Follow the prompts to install any available updates.
6. Restart your computer after updating the driver.
7. Open Sims 4 and check the Alien Disguise feature again.

Alternative Method: Use The Sims 4 Reset Command

If the Alien Disguise still does not work, try resetting the Sim using the in-game cheat console. This can fix temporary glitches with Sims’ states or abilities.

1. Press Ctrl + Shift + C to open the cheat console.
2. Type testingcheats true and press Enter.
3. Type resetSim [FirstName] [LastName] replacing the brackets with your Sim’s name.
4. Press Enter and close the cheat console.
5. Try using the Alien Disguise again.

This method resets the Sim and can clear minor bugs affecting their abilities.

Frequently Asked Questions (FAQs)

Why is the Alien Disguise not working after I updated Windows 11?

Windows updates sometimes change system files or settings that affect game compatibility. Ensure your game and drivers are also updated to match the new system environment.

Can antivirus software block Alien Disguise from working?

Yes, some antivirus programs may interfere with game files or processes. Temporarily disable your antivirus and test the game. If it works, add Sims 4 to the antivirus exceptions list.

Do I need to reinstall the entire game to fix this bug?

Reinstalling is usually a last resort. Try repairing the game and clearing cache first, as these steps often solve the problem without a full reinstall.

Will using mods cause the Alien Disguise bug?

Not always, but outdated or incompatible mods can cause issues. Always keep your mods updated and remove any that conflict with new game updates.

Is this bug specific to Windows 11?

Mostly yes, since Windows 11 introduces new system changes. However, similar issues can occur on other Windows versions, so following these steps can help regardless of your OS.

When Nothing Works

If you have tried all the steps above and the Alien Disguise still does not work, consider the following options:

• Contact EA Support: Visit the official EA Help website for personalized assistance and to report bugs.
• Check The Sims 4 Forums: The official Sims community often shares solutions and workarounds for common problems.
• Reinstall The Sims 4: As a last resort, uninstall and reinstall the game to ensure a clean setup.
• Wait for a Patch: Sometimes, bugs are fixed in future game updates. Keep your game updated regularly.

Conclusion

The Alien Disguise bug in The Sims 4 on Windows 11 can be frustrating, but most users can fix it by following simple steps. Start by restarting your PC, repairing game files, and clearing cache. Disable mods and update your graphics drivers to prevent conflicts. Using the reset command can help clear glitches as well.

If all else fails, official support and community forums are valuable resources. Remember to keep your game and system updated to avoid future problems.

With patience and the right approach, your Sims will be able to use their Alien Disguise again smoothly, enhancing your gameplay experience.