When I enter "Windows 10 Laptop" on Amazon, I always see laptops (most of them are priced at 400 euro) with pictures of Windows 10.
Does this automatically include Windows 10 "free of charge" or do I need an extra product key for Windows?
This is not automatically included with every laptop. That should be included in the description.
Windows 10 is not always included, many are only shipped with FreeDOS.
it is best to always look at the description and data sheet, there's something in it
That's in the description. If it is preinstalled, the product key is included.
It should be in the description what is included.
Probably W10 Home. They will not advertise what could be, but what is on it.
The product key has not been stuck on since Win8 / 8.1.
This can of course be different if the dealer installs Win10 according to the order.
