Forum Discussion
puzzlezaddict
2 years agoHero+
@David2013Engilia If you've installed Sims 4 through Steam, you need to launch it through Steam. The "already running" error is a known issue with a number of potential causes and as many workarounds. Please try the suggestions in the first post of this thread:
https://answers.ea.com/t5/Technical-Issues-PC/CURRENT-ISSUE-Sims-4-already-running/m-p/13276380
If those don't help, or you start seeing a different error when trying to launch through Steam, or you want to play through the EA App, let me know.