Assume that you install Windows 8.1 from installation media that includes Windows 8.1 Update 2919355. Then, you add a language pack.Note This issue does not occur if you first install a language pack on a Windows 8.1-based computer, and then you install Windows 8.1 Update 2919355.
Recently we collected and posted here a bunch of direct links to various MUI language packs for Windows 8.1, Windows 8 RTM and Windows 7. It is useful for users who need to install them on multiple PCs. They will save their Internet bandwidth and time by not downloading them again on each PC. Instead, they can save the offline package and use it for future installs. In this article, we shall see how to install these downloaded language packs.
Utilisez les liens ci-dessus pour Windows 8.1. Sinon vous pouvez tenter de passer par le panneau de configuration comme cela est expliqué ici : windows.microsoft.com/fr-BE/windows/language-packs#lptabs=win8 1e1e36bf2d