If you want to make the Recycle Bin icon visible again, open Settings (press Windows key + I), navigate to "Personalize" > "Themes" and click on the "Desktop icon settings" option. Select the "Recycle Bin (full)" icon and click on "Change Icon." Select the "Recycle Bin (Full)" icon from the available icons and click "OK." Do the same for the "Recycle Bin (empty)" icon. Click "OK" in the "Desktop Icon Settings" window.