online: open Origin - right click FIFA18 - Game properties - Tab (Cloud) - disable cloud backup offline: go to C:\Users\"your local username"\Documents\FIFA 18\settings and delete what you want or just delete the whole FIFA18 folder
You don't need to do all of this. Just install those 2 things and you are good to go: https://github.com/Ryochan7/DS4Windows/releases (DS4Windows) https://drive.google.com/open?id=1hs6AgM6yLeyr3htP9kY0T4N2vklRI2s9 (HidGuardian)
install this: https://github.com/Ryochan7/DS4Windows/releases (DS4Windows) https://drive.google.com/open?id=1hs6AgM6yLeyr3htP9kY0T4N2vklRI2s9 (HidGuardian) TLDR version. The HidGuardian filter driver is the most sure way of getting DS4Windows exclusive access to the DS4 controller.
If you have problems with the Controller in FIFA, you also have to install HIDGuardian (double Input Problem) https://github.com/Ryochan7/DS4Windows/wiki/DS4Windows-and-HIDGuardian-Install-and-Setup-Guide
If you have problems with the Controller in FIFA, you also have to install HIDGuardian (double Input Problem) https://github.com/Ryochan7/DS4Windows/wiki/DS4Windows-and-HIDGuardian-Install-and-Setup-Guide