The Sims 4 won’t launch – returns to EA App despite troubleshooting

Hi Anne,

Thanks for the detailed breakdown, that helps a lot. Since you’ve already covered the standard steps, this looks less like a basic reinstall/cache issue and more like something blocking the game at the user folder/background process/system level.

A few targeted things to try next:

1. Test with a completely fresh Sims 4 user folder (very important)

• Go to: Documents → Electronic Arts
• Move the entire “The Sims 4” folder to your desktop
• Launch the game again

This forces the game to generate a clean set of files. If it launches, the issue is in your old user data (even without mods).

2. Check for a stuck background process

• Open Task Manager
• Look for TS4_x64.exe or anything EA-related
• End those tasks, then relaunch

Sometimes the app thinks the game is already running and silently fails.

3. Delete core cache files manually
   Even after clearing cache via the app, some files persist:

• Documents → Electronic Arts → The Sims 4
• Delete: localthumbcache.package
• Delete contents of the cache folder (not the folder itself)

Corrupted cache can block launch entirely.

4. Check OneDrive / cloud sync (common but overlooked)
   If your Documents folder is synced:

• Pause or disable OneDrive sync temporarily
• Then try launching again

Cloud sync can lock the Sims 4 folder, preventing the game from starting.

5. Rule out external interference
   Temporarily disable or close:

• Antivirus/firewall
• Overlay apps (Discord, OBS, etc.)

These can silently block the launch process.

6. Update GPU drivers (even if nothing “changed”)
   This specific symptom (launch → nothing) is often driver-related after background updates.

If none of the above changes the behaviour, the next step would be checking a DxDiag to look for system-level conflicts.

Let us know what happens after step 1, specifically, that result usually narrows this down very quickly.