I use Windows 10's virtual desktop feature. The hotkey for switching between virtual desktops is Ctrl-Win-Left / Ctrl-Win-Right. When Emacs is focused and I want to switch dekstops, I get an error message in Emacs: "<C-lwindow> is undefined" and an alarm sound is played. I don't mind the error message that much, but the sound is quite irritating. Is there a way to tell Emacs to ignore this key combination?