Chances are very good that Windows will recognize the error of its ways and not bother you again, although it may take a couple of days for the activation routine to figure it out.
Don’t bother trying to find a Windows 10 key. Further reading: The best Windows 10 tips, tricks, and tweaks The prime directive: If you’re prompted for a product key but don’t have one, don’t sweat itĪssuming you’re upgrading from a “genuine” Windows 7 or 8.1 machine, if you’re prompted for a Win10 key, click Skip, Do This Later, or Next (depending on the dialog box).