Using the Media Creation Tool to try to install from USB, every time I get to the 'please enter your product key' bit I get an error message saying "This product key didn't work. Please check it and try again or try a different key".
System specs : M17xR4, Win8 came pre-installed from Dell and was upgraded to Win8.1. Existing windows license key read from registry,and win8.1 currently activated.
So.... do I need to wait until Dell produce a "Windows 10 Recovery media disk", or am I missing a step somewhere to convert a Win8 product key into a different Win10 product key ?