Re: Sims 4 won't start
@ChiaraTravaglino Sorry for the late reply; I wanted a second opinion on this error since I hadn't seen it before.
Click the Windows key, search for Services, and run it. Scroll down to "Windows modules installer," double-click it, set the Startup type to Manual, and click Apply.
Search in Windows for Command Prompt and run it as an administrator. (This is important: choose the admin option specifically.) Copy and paste this command, and enter:
sc config trustedinstaller start= demand
You should see a "success" message; let me know if you don't. If the command is successful, enter this command:
net start trustedinstaller
Restart the computer and try to run sfc again. Let me know how it goes.