If you don’t select sign out, Windows will change the display language next time when you sign in. Please make sure all your works have been saved before signing out.
You can select ⑧, and the computer will sign out to apply the language.
Windows will start to download and install the language pack and related features. The following takes Chinese (Traditional, Taiwan) as a reference. Please make sure your laptop is in an available network environment. When installing a new language pack, Windows needs to connect to the internet to download it. Please go to the corresponding instruction based on the current Windows operating system on your computer: