Hi Paula,
Try these steps below:
Go to Settings > Personalization > Taskbar > select the Other system tray icons section to expand it. Make sure Safely Remove Hardware and Eject Media is switched On. The Safely Remove Hardware and Eject Media icon should now appear in the system tray area of the taskbar.
Or you can manually eject it using this: Click WinKey+R and type this command rundll32 shell32.dll,Control_RunDLL hotplug.dll hit Enter. This opens the "Safely Remove Hardware" dialog box.
Hope this helps.