Add -locale es_ES to the target path in the BF4.exe shortcut properties: "C:\Program Files\EA Games\Battlefield 4\bf4.exe" -locale es_ES
Download Windows 7 SP1 Ultimate x64 : Here
Original Link from Microsoft (Dead) : Was Here
Add -locale es_ES to the target path in the BF4.exe shortcut properties: "C:\Program Files\EA Games\Battlefield 4\bf4.exe" -locale es_ES
The History of Windows 7 Development : Michael MJD