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Since there’s nothing else, the menu bar must have moved to the bottom; I’m not sure if the order of my actions was rational, but I did the following: on the Windows taskbar (the bottom bar with windows, sorry, I don’t remember the name), I arranged the windows in a cascade, then removed the pinning, so they could be moved. When the editor is launched next time, a “header” of the editor’s menu bar will appear in the lower right corner of the screen, and then, as Leshy wrote, go to View and check all the boxes. I think that should work.