Launcher is hidden, because printed on a non plugged screen

Long time ago, I was playing Minecraft on this laptop, with a second screen connected.

Now that my second screen is disconnected, when I was running the launcher, I can see it open in the task bar, but not on the screen.

To make it appear again, I had to use the key combo Windows + LeftArrow several times, to get it back on the left screen (the laptop one)