To restore a hidden Recycle Bin icon to the desktop in Windows, right click on the desktop, select Personalize, and select Change Desktop Icons from the personalization window. Select the Recycle Bin checkbox to restore the icon to the desktop.
Inversely, click the Start Menu button, and type "desktop icons" into the search box to bring up the Change Desktop Icons window. Check the Recycle Bin checkbox to restore the icon to the desktop.
Typically, the Recycle Bin icon becomes hidden if you run a custom desktop theme that does not utilize the Recycle Bin. Override this feature by deselecting the Allow Themes to Change Desktop Icons checkbox.