: Right-click The Sims 4 in your Library , select Properties > Installed Files , and click Verify integrity of game files .

Next, navigate to: HKEY_LOCAL_MACHINE > SOFTWARE > WOW6432Node > Maxis > The Sims 4 . Verify that the string there matches the same code. Close the editor and restart your computer.

If it detects a UI or string conflict, a web browser window will pop up.