1. Connect your iPod to your computer using a USB cable.
2. Open iTunes on your computer.
3. When iTunes detects your iPod, it will display a message asking you if you want to restore or update your iPod.
4. Click the "Restore" button.
5. iTunes will download the latest software for your iPod and install it.
6. Once the installation is complete, your iPod will restart in normal mode.
If you are unable to exit recovery mode using these steps, you may need to take your iPod to an Apple Store or Authorized Service Provider for further assistance.