To change display language in Windows 10:
- Click Start, Settings, Time & Language,
- Click Additional date, time, & regional settings,
- Click change input methods, options,
- Click add a language, select your language,
- Click add, in your new added language click options,
- Click Download and insall language pack.
- Wait a few moments until language files are downloaded and installed, when installaion is finished clik Restart Now.
- After the Computer restarts click Start, Settings, Time & Language, Region & Language, click in your language, click Set as default, your display language will be changed afer next sign-in.
Change keyboard layot:
- Click Start, Settings, Time & Language, Additional date, time, & regional settings.
- Click change input methods, options, add an input method.
- Click in your favorite keyboard language.
- Click add, click save.
- Now switch to your language in left side of toolbar.