Hi Elg,
If Windows Security recently blocked TS4_Launcher_x64.exe after a Sims 4 update, it is possible that the launcher file was quarantined or removed during a security scan, which can prevent the game from starting.
Please try these quick steps:
- Open Windows Security > Virus & threat protection > Protection history.
- Look for any entry related to
TS4_Launcher_x64.exeand review the details. - If the file is listed as quarantined and you recognize it as part of your legitimate Sims 4 installation, follow the available option to restore it.
- Then open the EA App and run a Repair on The Sims 4 to replace any missing game files.
If the issue started immediately after an update, verifying the game files through the EA App is often helpful, as updated launcher files may need to be revalidated.
If the launcher is still being blocked, please share the exact detection name shown in Protection History. That information can help determine whether this is a security detection that requires further investigation or a launcher-specific issue.
Let me know if you need further assistance, feel free to ask me by clicking "Add Comment" or "Add Answer" if you cannot add comment so your response will be visible. Thanks for your effort.
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