Keep rainmeter from minimizing

"Try right clicking on the gadget and choosing ""always on top"", whilst it means it goes on all windows, it does mean that it will stay there when you click the button to go to desktop or hover on it.

Apart from this, gadgets should always be visible when the desktop is shown even if the ""always on top"" option is not selected, so if it is not visible - it is probably an error in the gadget."