How to Open an Installed Launcher on Android

1. Press the 'Menu' key on the home screen of your Android device.

2. Touch 'Settings' and select 'Applications.'

3. Tap 'Manage applications' and tap the 'All' tab.

4. Locate the launcher you are using and tap it. Touch the 'Clear Defaults' button.

5. Press the 'Home' button and the device will display a list of available launchers.

6. Check the 'Use by Default for this Action' box and touch the launcher you want to use.