SSMS is a wonderful tool. You can drag Windows around, grouped with others, split, docked, undocked, hidden… it seems endless what you can do with them. You can even change what columns you see. Invariably, with all of this customization, things go wonky. I’ve even seen windows opened up on invisible monitors. Sometimes you can’t find the windows that you need. Conversely, windows that you don’t need are open all over the place. Sometimes, you just need to reset everything and start over. Short of reinstalling SSMS, how do you do this? You just reset the window layout.
It’s one of those options which stares you in the face but you can easily miss.