There are ADM templates circulating on the Internet to configure your default keyboard layout by policy. These solutions work, but there are easier ways. Since Group Policy Preferences is here, which can be used from XP to Windows 7, importing registry settings was never this easy. So, follow these steps to import your keyboard layout in GP Preferences:
Keyboard settings through group policy preferences
1. Configure your computer with the appropriate keyboard layout settings
2. Open regedit.exe
Skip step 3 to 5 if you’re configuring your policy on the same system and the same username on which you configured your keyboard layout.