Microsoft allows you to install Windows 10 or ... a product key" option and, just like that, Windows will be installed ...

If when you attempt to upgrade your edition of Windows from Home to Pro but ... We can’t activate Windows on this device because you don’t have a valid license or product key.

Here are the steps for that: Launch the Command Prompt ... without the product key, you will get all the functionalities of Windows 10 and regular updates too. You only have to deal with the ...

At least for now, though, it seems like this change will only apply to future Windows versions. We were able to activate a fresh Windows 11 Pro ... without re-entering the product key.