Manual Installation:

Open fallout4.ini (Located here: [...]\Documents\My Games\Fallout4)
Edit "sResourceDataDirsFinal" as follow :
>> sResourceDataDirsFinal=STRINGS\, TEXTURES\

Place the "Data" file into your Fallout 4 installation folder (Located here : [...]\Steam\SteamApps\common\Fallout 4\)
Select "Yes" if prompted to merge or overwrite.