Open Regional and Language Options in Control Panel.
On the Languages tab, under Text services and input languages, click Details.
Under Installed services, click Add.
In the Input language list, click the language for the keyboard layout or Input Method Editor (IME) you want to add.
Select the Keyboard layout/IME check box, if multiple options are available, and then click a service in the list.
If Keyboard Layout/IME is the only type of text service available, click an option in that list.
To open Regional and Language Options, click Start, click Control Panel, click Date, Time, Language, and Regional Options, and then click Regional and Language Options.
There may be only one keyboard layout for some languages.
To add an IME, you must have installed it on your computer first.
Add or Remove Programs overview
Customize key sequences for input languages
Switch languages or keyboards from the taskbar
Switch languages or keyboards from the Language bar
Add another text service
Add another language