If you already have one
How to Find Your Windows 11 Product Key
If you’re looking for your Windows 11 product key, even just to keep it in a safe place, there may not be an obvious place to find it. If it’s been a while since you upgraded your version of Windows, you may not be aware of how product keys have changed. The good news is that finding your Windows 11 product key is quick and easy.
The first thing to know is that you might not have a key at all. Some versions of Windows 11 (and Windows 10, for that matter) are activated using digital licenses. For example, your laptop’s motherboard is likely tied to a digital entitlement for Windows, so it will be automatically updated and detected when you reinstall or upgrade to Windows 11.
Remember, you don’t need a product key to install Windows 11; you can activate the operating system after it’s fully installed. There’s no rush either, because apart from a watermark and not being able to change your wallpaper, Windows 11 will be fully functional even without a key.