How to add or remove the input language in Windows 7?

Solution:

1.Click Windows “Start” button, and go to “Control Panel” – “Clock, Language, and Region”(Category view) – “Region and Language” – “Keyboards and Languages”tab – “Change keyboards”

2.In the “Text Services and Input Languages” - “General” tab, and then click “Add” to add one input languages, if you want to remove it please select the input language which you want to delete and Click “Remove” to remove it ;

3. You can change the inputs by right-clicking "Language bar" and choose "setting" to change the languages.