How to Add a Korean Keyboard to Your Computer – Windows
Language packs for Windows
Use the Add a language feature to install another language for Windows 11 to view menus, dialog boxes, and supported apps and websites in that language.
To do this:
Select Start > Settings > Time & language > Language & region.
Go to Preferred languages, select Add a language.
In Choose a language to install, enter and select the name of the language that you want to install, then select Next.
In Install language features, select the features that you want to use, then select Install.
To use Microsoft Office in your preferred language, download a Microsoft 365 language pack.