Re: "Sims 4 is already running"
@danieloje99 This error usually has to do with an antivirus/firewall blocking the game. Please set exceptions in whatever app(s) you use for Origin.exe, TS4.exe, and TS4_x64.exe. If that doesn't help, check to see whether you've enabled Controlled Folder Access, a feature of Windows Defender. If so, here's how to change the settings:
https://crinrict.com/blog/2019/03/windows-10-defender-controlled-folder-access.html
Here are a few other steps that can help with this particular error:
https://sims4.crinrict.com/eng/2015/08/game-already-running/