You never know when you’ll need a Windows recovery drive in order to restore your system to a pristine state, so the time to make one is now—and it’s very easy to do.
A recovery drive is similar to the media you’d receive if you bought a prebuilt system. Back in the day, PCs would ship with a CD or DVD that included an image of the system as it left the factory. If your PC’s OS went sideways, you could easily restore it to the way things were on day one (though you’d lose all of your subsequently created data and applications, obviously). Nowadays manufacturers usually just put an image of the system as it left the factory on a hidden partition of your main drive.