Please help me find Home button

Very newbie question…I am a senior citizen and have had Kodi Jarvis for a long time. I upgraded to Kodi
Krypton this week on Windows 10…Where did the HOME button go? I know I can hit escape and go back to previous
screens, but it only goes so far back. Please tell me how to go back to home so I can change some settings.
Thank you very much