Method 1
- Start Origin and Login
- Find the Game in My Game Library
- Right-Click on the game and choose Game Properties
- Click on the Tab Advanced Launch Options
- In the field under Command line arguments write -w and press Save

- Start the game
- After starting the game you can set the desired setting in the game and then remove the setting in Origin.

Method 2
This method only works if the game was already started once and the user folder has the file needed.
Sims 4 has three different Display Types: Fullscreen, Windowed and Windowed-Fullscreen. You can set the mode directly in the Options.ini file
How to manipulate the options.ini file
- Make sure the game is closed
- Navigate to your user folder in the file system and find the file Options.ini. If you have known extensions hidden you will only see the file as Options.

- Right-Click on the file and choose: Open with and then Editor (you can use any text editor of your choosing).
- Change the desired options
- Save your changes. Make sure, Windows doesn't add a txt as extension. The file needs to say an ini file and needs to have the corresponding icon.
- Start the game.
- Look for the following entries in the file: fullscreen = and windowedfullscreen =

- Change the value as follows:
- Fullscreen: fullscreen = 1, windowedfullscreen = 0
- Fullscreen-Windowed: fullscreen = 1, windowedfullscreen = 1
- Windowed: fullscreen = 0, windowedfullscreen = 0
Start Sims 4 in Windowed Mode
Method 1
Method 2
This method only works if the game was already started once and the user folder has the file needed.
Sims 4 has three different Display Types: Fullscreen, Windowed and Windowed-Fullscreen. You can set the mode directly in the Options.ini file
By crin • Tutorial • Tags: Fullscreen Mode, Windowed Mode, Windowed-Fullscreen Mode