Set your desired GPU (important for laptops with dual graphics), resolution, and controller type. Click "OK." The file will generate a SETTING.dat file in the same directory.

If you change your resolution but the game reverts to default, your settings file might be "Read-Only." Right-click Settings.exe -> . Uncheck Read-only at the bottom. Click Apply . "Exclusive" Fullscreen Problems

To answer the prompt directly:

C:\Program Files (x86)\Steam\steamapps\common\PRO EVOLUTION SOCCER 2018 Key Settings Options