Download Windows 11 Disk Image (ISO) for x64 devices. This option is for users that want to create a bootable installation media ( Microsoft Add languages to Windows Setup - Microsoft Learn

Some apps (like older Win32 programs) may not support the new language unless you reinstall them. Microsoft Store apps will switch automatically.

These have 100% translation of the OS, including help files and speech recognition. Examples:

To create a multi-language Windows 11 ISO file, you'll need:

After creation, open the USB drive in File Explorer. You should see a folder called sources containing lang.ini and multiple lp.cab files (language packs). If those exist, you have a true multi-language USB.

If you want, I can provide: a) exact DISM commands to inject a language pack into an offline WIM, or b) a step‑by‑step guide to add languages via Settings after install.