Open Driver Booster -> Click the Options icon on the top left - >Select Settings... -> Select the language you want in the right panel -> Click OK.
Driver Booster supports the following languages:
Albanian, Arabic, Belarusian, Bosnian, Bulgarian, Catalan, Croatian, ChineseSimp, ChineseTrad, Czech, Danish, Dutch, English, Finnish, French, Georgian, German, Greek, Hebrew, Hungarian, Italian, Japanese, Korean, Kurdish, Latvian, Lithuanian, Malayalam, Maltese, Mongolian, Norwegian, Persian, Polish, Portuguese (PT-BR), Portuguese (PT-PT), Romanian, Russian, Serbian (Cyrillic), Serbian (Latin), Slovak, Slovenian, Spanish, Swahili, Swedish, Thai, Turkish, Ukrainian, and Vietnamese.