How To: Add or Change an Input Language
If you want to enter text or edit documents in multiple languages, the easier way is to add or change the input language.
Input languages are included with Windows, but you need to add them to your list of languages before you can use them.
Windows 7
Add an input language
1. Open Region and Language by clicking the Start button 
, then Control Panel, then Clock, Language, and Region, and then Region and Language.
2. Click the Keyboards and Languages tab, and then Change keyboards.
3. Under Installed services, click Add.
4. Double-click the Language you want to add, double-click Keyboard, select the text services options you want to add, and then click OK.
Change an input language
Before you can change the input language that you want to use, you need to make sure that the input language has been added.
Click the Input language button on the Language bar, and then click the input language you want to use.
If you don't see the Language bar, right-click the taskbar, point to Toolbars, and then click Language bar.
In addition to changing the input language, you can also customize your keyboard for a specific language or format.
Change your keyboard layout
On the Language bar, click the Input language button, and then select an input language.
2. Click the Keyboard layout button, and then select a keyboard layout.
To change the keyboard layout on the Welcome screen
On the Welcome screen, click the Keyboard layout button 
, and then select a keyboard layout.
Window 10
1. Go to Settings > Time & language.
2. Then Region & language
3. Select Add a language.
4. Select the language you want to use from the list.
5. Then choose which region's version you want to use.
