Windows 10 Offline — Language Packages Installer V1.5 -v1903

Reboot the machine. Go to Settings > Time & Language > Language . You should see your installed languages. Click on one and select "Set as default" .

: Many versions, like those mentioned in enterprise tools, include command-line switches for silent or mass deployment. Version-Specific Compatibility : Tools labeled for

To use language packs offline, you typically need the original source files often found in official Microsoft ISOs: Language packs. offline inistallation - Microsoft Q&A